383 lines
11 KiB
LLVM
383 lines
11 KiB
LLVM
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; Test 64-bit comparison in which the second operand is a zero-extended i32.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare i64 @foo()
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; Check unsigned register comparison.
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define double @f1(double %a, double %b, i64 %i1, i32 %unext) {
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; CHECK-LABEL: f1:
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; CHECK: clgfr %r2, %r3
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%i2 = zext i32 %unext to i64
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%cond = icmp ult i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; ...and again with a different representation.
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define double @f2(double %a, double %b, i64 %i1, i64 %unext) {
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; CHECK-LABEL: f2:
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; CHECK: clgfr %r2, %r3
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%i2 = and i64 %unext, 4294967295
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%cond = icmp ult i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check signed register comparison, which can't use CLGFR.
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define double @f3(double %a, double %b, i64 %i1, i32 %unext) {
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; CHECK-LABEL: f3:
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; CHECK-NOT: clgfr
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; CHECK: br %r14
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%i2 = zext i32 %unext to i64
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%cond = icmp slt i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; ...and again with a different representation
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define double @f4(double %a, double %b, i64 %i1, i64 %unext) {
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; CHECK-LABEL: f4:
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; CHECK-NOT: clgfr
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; CHECK: br %r14
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%i2 = and i64 %unext, 4294967295
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%cond = icmp slt i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check register equality.
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define double @f5(double %a, double %b, i64 %i1, i32 %unext) {
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; CHECK-LABEL: f5:
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; CHECK: clgfr %r2, %r3
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; CHECK-NEXT: ber %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%i2 = zext i32 %unext to i64
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%cond = icmp eq i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; ...and again with a different representation
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define double @f6(double %a, double %b, i64 %i1, i64 %unext) {
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; CHECK-LABEL: f6:
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; CHECK: clgfr %r2, %r3
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; CHECK-NEXT: ber %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%i2 = and i64 %unext, 4294967295
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%cond = icmp eq i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check register inequality.
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define double @f7(double %a, double %b, i64 %i1, i32 %unext) {
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; CHECK-LABEL: f7:
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; CHECK: clgfr %r2, %r3
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; CHECK-NEXT: blhr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%i2 = zext i32 %unext to i64
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%cond = icmp ne i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; ...and again with a different representation
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define double @f8(double %a, double %b, i64 %i1, i64 %unext) {
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; CHECK-LABEL: f8:
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; CHECK: clgfr %r2, %r3
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; CHECK-NEXT: blhr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%i2 = and i64 %unext, 4294967295
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%cond = icmp ne i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check unsigned comparison with memory.
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define double @f9(double %a, double %b, i64 %i1, i32 *%ptr) {
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; CHECK-LABEL: f9:
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; CHECK: clgf %r2, 0(%r3)
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%unext = load i32, i32 *%ptr
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%i2 = zext i32 %unext to i64
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%cond = icmp ult i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check signed comparison with memory.
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define double @f10(double %a, double %b, i64 %i1, i32 *%ptr) {
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; CHECK-LABEL: f10:
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; CHECK-NOT: clgf
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; CHECK: br %r14
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%unext = load i32, i32 *%ptr
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%i2 = zext i32 %unext to i64
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%cond = icmp slt i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check memory equality.
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define double @f11(double %a, double %b, i64 %i1, i32 *%ptr) {
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; CHECK-LABEL: f11:
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; CHECK: clgf %r2, 0(%r3)
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; CHECK-NEXT: ber %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%unext = load i32, i32 *%ptr
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%i2 = zext i32 %unext to i64
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%cond = icmp eq i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check memory inequality.
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define double @f12(double %a, double %b, i64 %i1, i32 *%ptr) {
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; CHECK-LABEL: f12:
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; CHECK: clgf %r2, 0(%r3)
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; CHECK-NEXT: blhr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%unext = load i32, i32 *%ptr
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%i2 = zext i32 %unext to i64
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%cond = icmp ne i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the high end of the aligned CLGF range.
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define double @f13(double %a, double %b, i64 %i1, i32 *%base) {
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; CHECK-LABEL: f13:
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; CHECK: clgf %r2, 524284(%r3)
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%ptr = getelementptr i32, i32 *%base, i64 131071
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%unext = load i32, i32 *%ptr
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%i2 = zext i32 %unext to i64
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%cond = icmp ult i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next word up, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define double @f14(double %a, double %b, i64 %i1, i32 *%base) {
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; CHECK-LABEL: f14:
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; CHECK: agfi %r3, 524288
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; CHECK: clgf %r2, 0(%r3)
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%ptr = getelementptr i32, i32 *%base, i64 131072
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%unext = load i32, i32 *%ptr
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%i2 = zext i32 %unext to i64
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%cond = icmp ult i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the high end of the negative aligned CLGF range.
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define double @f15(double %a, double %b, i64 %i1, i32 *%base) {
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; CHECK-LABEL: f15:
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; CHECK: clgf %r2, -4(%r3)
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%ptr = getelementptr i32, i32 *%base, i64 -1
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%unext = load i32, i32 *%ptr
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%i2 = zext i32 %unext to i64
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%cond = icmp ult i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the low end of the CLGF range.
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define double @f16(double %a, double %b, i64 %i1, i32 *%base) {
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; CHECK-LABEL: f16:
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; CHECK: clgf %r2, -524288(%r3)
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%ptr = getelementptr i32, i32 *%base, i64 -131072
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%unext = load i32, i32 *%ptr
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%i2 = zext i32 %unext to i64
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%cond = icmp ult i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check the next word down, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define double @f17(double %a, double %b, i64 %i1, i32 *%base) {
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; CHECK-LABEL: f17:
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; CHECK: agfi %r3, -524292
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; CHECK: clgf %r2, 0(%r3)
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%ptr = getelementptr i32, i32 *%base, i64 -131073
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%unext = load i32, i32 *%ptr
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%i2 = zext i32 %unext to i64
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%cond = icmp ult i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check that CLGF allows an index.
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define double @f18(double %a, double %b, i64 %i1, i64 %base, i64 %index) {
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; CHECK-LABEL: f18:
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; CHECK: clgf %r2, 524284({{%r4,%r3|%r3,%r4}})
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; CHECK-NEXT: blr %r14
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; CHECK: ldr %f0, %f2
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; CHECK: br %r14
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%add1 = add i64 %base, %index
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%add2 = add i64 %add1, 524284
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%ptr = inttoptr i64 %add2 to i32 *
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%unext = load i32, i32 *%ptr
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%i2 = zext i32 %unext to i64
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%cond = icmp ult i64 %i1, %i2
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%res = select i1 %cond, double %a, double %b
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ret double %res
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}
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; Check that comparisons of spilled values can use CLGF rather than CLGFR.
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define i64 @f19(i32 *%ptr0) {
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; CHECK-LABEL: f19:
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; CHECK: brasl %r14, foo@PLT
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; CHECK: clgf {{%r[0-9]+}}, 16{{[04]}}(%r15)
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; CHECK: br %r14
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%ptr1 = getelementptr i32, i32 *%ptr0, i64 2
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%ptr2 = getelementptr i32, i32 *%ptr0, i64 4
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%ptr3 = getelementptr i32, i32 *%ptr0, i64 6
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%ptr4 = getelementptr i32, i32 *%ptr0, i64 8
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%ptr5 = getelementptr i32, i32 *%ptr0, i64 10
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%ptr6 = getelementptr i32, i32 *%ptr0, i64 12
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%ptr7 = getelementptr i32, i32 *%ptr0, i64 14
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%ptr8 = getelementptr i32, i32 *%ptr0, i64 16
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%ptr9 = getelementptr i32, i32 *%ptr0, i64 18
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%val0 = load i32, i32 *%ptr0
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%val1 = load i32, i32 *%ptr1
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%val2 = load i32, i32 *%ptr2
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%val3 = load i32, i32 *%ptr3
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%val4 = load i32, i32 *%ptr4
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%val5 = load i32, i32 *%ptr5
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%val6 = load i32, i32 *%ptr6
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%val7 = load i32, i32 *%ptr7
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%val8 = load i32, i32 *%ptr8
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%val9 = load i32, i32 *%ptr9
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%frob0 = add i32 %val0, 100
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%frob1 = add i32 %val1, 100
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%frob2 = add i32 %val2, 100
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%frob3 = add i32 %val3, 100
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%frob4 = add i32 %val4, 100
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%frob5 = add i32 %val5, 100
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%frob6 = add i32 %val6, 100
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%frob7 = add i32 %val7, 100
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%frob8 = add i32 %val8, 100
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%frob9 = add i32 %val9, 100
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store i32 %frob0, i32 *%ptr0
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store i32 %frob1, i32 *%ptr1
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store i32 %frob2, i32 *%ptr2
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store i32 %frob3, i32 *%ptr3
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store i32 %frob4, i32 *%ptr4
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store i32 %frob5, i32 *%ptr5
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store i32 %frob6, i32 *%ptr6
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store i32 %frob7, i32 *%ptr7
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store i32 %frob8, i32 *%ptr8
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store i32 %frob9, i32 *%ptr9
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%ret = call i64 @foo()
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%ext0 = zext i32 %frob0 to i64
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%ext1 = zext i32 %frob1 to i64
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%ext2 = zext i32 %frob2 to i64
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%ext3 = zext i32 %frob3 to i64
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%ext4 = zext i32 %frob4 to i64
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%ext5 = zext i32 %frob5 to i64
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%ext6 = zext i32 %frob6 to i64
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%ext7 = zext i32 %frob7 to i64
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%ext8 = zext i32 %frob8 to i64
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%ext9 = zext i32 %frob9 to i64
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%cmp0 = icmp ult i64 %ret, %ext0
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%cmp1 = icmp ult i64 %ret, %ext1
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%cmp2 = icmp ult i64 %ret, %ext2
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%cmp3 = icmp ult i64 %ret, %ext3
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%cmp4 = icmp ult i64 %ret, %ext4
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%cmp5 = icmp ult i64 %ret, %ext5
|
||
|
|
%cmp6 = icmp ult i64 %ret, %ext6
|
||
|
|
%cmp7 = icmp ult i64 %ret, %ext7
|
||
|
|
%cmp8 = icmp ult i64 %ret, %ext8
|
||
|
|
%cmp9 = icmp ult i64 %ret, %ext9
|
||
|
|
|
||
|
|
%sel0 = select i1 %cmp0, i64 %ret, i64 0
|
||
|
|
%sel1 = select i1 %cmp1, i64 %sel0, i64 1
|
||
|
|
%sel2 = select i1 %cmp2, i64 %sel1, i64 2
|
||
|
|
%sel3 = select i1 %cmp3, i64 %sel2, i64 3
|
||
|
|
%sel4 = select i1 %cmp4, i64 %sel3, i64 4
|
||
|
|
%sel5 = select i1 %cmp5, i64 %sel4, i64 5
|
||
|
|
%sel6 = select i1 %cmp6, i64 %sel5, i64 6
|
||
|
|
%sel7 = select i1 %cmp7, i64 %sel6, i64 7
|
||
|
|
%sel8 = select i1 %cmp8, i64 %sel7, i64 8
|
||
|
|
%sel9 = select i1 %cmp9, i64 %sel8, i64 9
|
||
|
|
|
||
|
|
ret i64 %sel9
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check the comparison can be reversed if that allows CLGFR to be used.
|
||
|
|
define double @f20(double %a, double %b, i64 %i1, i32 %unext) {
|
||
|
|
; CHECK-LABEL: f20:
|
||
|
|
; CHECK: clgfr %r2, %r3
|
||
|
|
; CHECK-NEXT: bhr %r14
|
||
|
|
; CHECK: ldr %f0, %f2
|
||
|
|
; CHECK: br %r14
|
||
|
|
%i2 = zext i32 %unext to i64
|
||
|
|
%cond = icmp ult i64 %i2, %i1
|
||
|
|
%res = select i1 %cond, double %a, double %b
|
||
|
|
ret double %res
|
||
|
|
}
|
||
|
|
|
||
|
|
; ...and again with the AND representation.
|
||
|
|
define double @f21(double %a, double %b, i64 %i1, i64 %unext) {
|
||
|
|
; CHECK-LABEL: f21:
|
||
|
|
; CHECK: clgfr %r2, %r3
|
||
|
|
; CHECK-NEXT: bhr %r14
|
||
|
|
; CHECK: ldr %f0, %f2
|
||
|
|
; CHECK: br %r14
|
||
|
|
%i2 = and i64 %unext, 4294967295
|
||
|
|
%cond = icmp ult i64 %i2, %i1
|
||
|
|
%res = select i1 %cond, double %a, double %b
|
||
|
|
ret double %res
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check the comparison can be reversed if that allows CLGF to be used.
|
||
|
|
define double @f22(double %a, double %b, i64 %i2, i32 *%ptr) {
|
||
|
|
; CHECK-LABEL: f22:
|
||
|
|
; CHECK: clgf %r2, 0(%r3)
|
||
|
|
; CHECK-NEXT: bhr %r14
|
||
|
|
; CHECK: ldr %f0, %f2
|
||
|
|
; CHECK: br %r14
|
||
|
|
%unext = load i32, i32 *%ptr
|
||
|
|
%i1 = zext i32 %unext to i64
|
||
|
|
%cond = icmp ult i64 %i1, %i2
|
||
|
|
%res = select i1 %cond, double %a, double %b
|
||
|
|
ret double %res
|
||
|
|
}
|