238 lines
6.3 KiB
LLVM
238 lines
6.3 KiB
LLVM
; Test 64-bit signed comparisons between memory and a constant.
|
|
;
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
|
|
|
; Check ordered comparisons with 0.
|
|
define double @f1(double %a, double %b, i64 *%ptr) {
|
|
; CHECK-LABEL: f1:
|
|
; CHECK: cghsi 0(%r2), 0
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp slt i64 %val, 0
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check ordered comparisons with 1.
|
|
define double @f2(double %a, double %b, i64 *%ptr) {
|
|
; CHECK-LABEL: f2:
|
|
; CHECK: cghsi 0(%r2), 0
|
|
; CHECK-NEXT: bler %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp slt i64 %val, 1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check ordered comparisons with the high end of the signed 16-bit range.
|
|
define double @f3(double %a, double %b, i64 *%ptr) {
|
|
; CHECK-LABEL: f3:
|
|
; CHECK: cghsi 0(%r2), 32767
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp slt i64 %val, 32767
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the next value up, which can't use CGHSI.
|
|
define double @f4(double %a, double %b, i64 *%ptr) {
|
|
; CHECK-LABEL: f4:
|
|
; CHECK-NOT: cghsi
|
|
; CHECK: br %r14
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp slt i64 %val, 32768
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check ordered comparisons with -1.
|
|
define double @f5(double %a, double %b, i64 *%ptr) {
|
|
; CHECK-LABEL: f5:
|
|
; CHECK: cghsi 0(%r2), -1
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp slt i64 %val, -1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check ordered comparisons with the low end of the 16-bit signed range.
|
|
define double @f6(double %a, double %b, i64 *%ptr) {
|
|
; CHECK-LABEL: f6:
|
|
; CHECK: cghsi 0(%r2), -32768
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp slt i64 %val, -32768
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the next value down, which should be treated as a positive value.
|
|
define double @f7(double %a, double %b, i64 *%ptr) {
|
|
; CHECK-LABEL: f7:
|
|
; CHECK-NOT: cghsi
|
|
; CHECK: br %r14
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp slt i64 %val, -32769
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check equality comparisons with 0.
|
|
define double @f8(double %a, double %b, i64 *%ptr) {
|
|
; CHECK-LABEL: f8:
|
|
; CHECK: cghsi 0(%r2), 0
|
|
; CHECK-NEXT: ber %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp eq i64 %val, 0
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check equality comparisons with 1.
|
|
define double @f9(double %a, double %b, i64 *%ptr) {
|
|
; CHECK-LABEL: f9:
|
|
; CHECK: cghsi 0(%r2), 1
|
|
; CHECK-NEXT: ber %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp eq i64 %val, 1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check equality comparisons with the high end of the signed 16-bit range.
|
|
define double @f10(double %a, double %b, i64 *%ptr) {
|
|
; CHECK-LABEL: f10:
|
|
; CHECK: cghsi 0(%r2), 32767
|
|
; CHECK-NEXT: ber %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp eq i64 %val, 32767
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the next value up, which can't use CGHSI.
|
|
define double @f11(double %a, double %b, i64 *%ptr) {
|
|
; CHECK-LABEL: f11:
|
|
; CHECK-NOT: cghsi
|
|
; CHECK: br %r14
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp eq i64 %val, 32768
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check equality comparisons with -1.
|
|
define double @f12(double %a, double %b, i64 *%ptr) {
|
|
; CHECK-LABEL: f12:
|
|
; CHECK: cghsi 0(%r2), -1
|
|
; CHECK-NEXT: ber %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp eq i64 %val, -1
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check equality comparisons with the low end of the 16-bit signed range.
|
|
define double @f13(double %a, double %b, i64 *%ptr) {
|
|
; CHECK-LABEL: f13:
|
|
; CHECK: cghsi 0(%r2), -32768
|
|
; CHECK-NEXT: ber %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp eq i64 %val, -32768
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the next value down, which should be treated as a positive value.
|
|
define double @f14(double %a, double %b, i64 *%ptr) {
|
|
; CHECK-LABEL: f14:
|
|
; CHECK-NOT: cghsi
|
|
; CHECK: br %r14
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp eq i64 %val, -32769
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the high end of the CGHSI range.
|
|
define double @f15(double %a, double %b, i64 %i1, i64 *%base) {
|
|
; CHECK-LABEL: f15:
|
|
; CHECK: cghsi 4088(%r3), 0
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i64, i64 *%base, i64 511
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp slt i64 %val, 0
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check the next doubleword up, which needs separate address logic,
|
|
define double @f16(double %a, double %b, i64 *%base) {
|
|
; CHECK-LABEL: f16:
|
|
; CHECK: aghi %r2, 4096
|
|
; CHECK: cghsi 0(%r2), 0
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i64, i64 *%base, i64 512
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp slt i64 %val, 0
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check negative offsets, which also need separate address logic.
|
|
define double @f17(double %a, double %b, i64 *%base) {
|
|
; CHECK-LABEL: f17:
|
|
; CHECK: aghi %r2, -8
|
|
; CHECK: cghsi 0(%r2), 0
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%ptr = getelementptr i64, i64 *%base, i64 -1
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp slt i64 %val, 0
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|
|
|
|
; Check that CGHSI does not allow indices.
|
|
define double @f18(double %a, double %b, i64 %base, i64 %index) {
|
|
; CHECK-LABEL: f18:
|
|
; CHECK: agr {{%r2, %r3|%r3, %r2}}
|
|
; CHECK: cghsi 0({{%r[23]}}), 0
|
|
; CHECK-NEXT: blr %r14
|
|
; CHECK: ldr %f0, %f2
|
|
; CHECK: br %r14
|
|
%add = add i64 %base, %index
|
|
%ptr = inttoptr i64 %add to i64 *
|
|
%val = load i64, i64 *%ptr
|
|
%cond = icmp slt i64 %val, 0
|
|
%res = select i1 %cond, double %a, double %b
|
|
ret double %res
|
|
}
|