100 lines
3.2 KiB
LLVM
100 lines
3.2 KiB
LLVM
|
; Test strict extensions of f64 to f128.
|
||
|
|
;
|
||
|
|
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
|
||
|
|
|
||
|
|
declare fp128 @llvm.experimental.constrained.fpext.f128.f64(double, metadata)
|
||
|
|
|
||
|
|
; Check register extension.
|
||
|
|
define void @f1(fp128 *%dst, double %val) #0 {
|
||
|
|
; CHECK-LABEL: f1:
|
||
|
|
; CHECK: lxdbr %f0, %f0
|
||
|
|
; CHECK: std %f0, 0(%r2)
|
||
|
|
; CHECK: std %f2, 8(%r2)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%res = call fp128 @llvm.experimental.constrained.fpext.f128.f64(double %val,
|
||
|
|
metadata !"fpexcept.strict") #0
|
||
|
|
store fp128 %res, fp128 *%dst
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check the low end of the LXDB range.
|
||
|
|
define void @f2(fp128 *%dst, double *%ptr) #0 {
|
||
|
|
; CHECK-LABEL: f2:
|
||
|
|
; CHECK: lxdb %f0, 0(%r3)
|
||
|
|
; CHECK: std %f0, 0(%r2)
|
||
|
|
; CHECK: std %f2, 8(%r2)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%val = load double, double *%ptr
|
||
|
|
%res = call fp128 @llvm.experimental.constrained.fpext.f128.f64(double %val,
|
||
|
|
metadata !"fpexcept.strict") #0
|
||
|
|
store fp128 %res, fp128 *%dst
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check the high end of the aligned LXDB range.
|
||
|
|
define void @f3(fp128 *%dst, double *%base) #0 {
|
||
|
|
; CHECK-LABEL: f3:
|
||
|
|
; CHECK: lxdb %f0, 4088(%r3)
|
||
|
|
; CHECK: std %f0, 0(%r2)
|
||
|
|
; CHECK: std %f2, 8(%r2)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%ptr = getelementptr double, double *%base, i64 511
|
||
|
|
%val = load double, double *%ptr
|
||
|
|
%res = call fp128 @llvm.experimental.constrained.fpext.f128.f64(double %val,
|
||
|
|
metadata !"fpexcept.strict") #0
|
||
|
|
store fp128 %res, fp128 *%dst
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check the next doubleword up, which needs separate address logic.
|
||
|
|
; Other sequences besides this one would be OK.
|
||
|
|
define void @f4(fp128 *%dst, double *%base) #0 {
|
||
|
|
; CHECK-LABEL: f4:
|
||
|
|
; CHECK: aghi %r3, 4096
|
||
|
|
; CHECK: lxdb %f0, 0(%r3)
|
||
|
|
; CHECK: std %f0, 0(%r2)
|
||
|
|
; CHECK: std %f2, 8(%r2)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%ptr = getelementptr double, double *%base, i64 512
|
||
|
|
%val = load double, double *%ptr
|
||
|
|
%res = call fp128 @llvm.experimental.constrained.fpext.f128.f64(double %val,
|
||
|
|
metadata !"fpexcept.strict") #0
|
||
|
|
store fp128 %res, fp128 *%dst
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check negative displacements, which also need separate address logic.
|
||
|
|
define void @f5(fp128 *%dst, double *%base) #0 {
|
||
|
|
; CHECK-LABEL: f5:
|
||
|
|
; CHECK: aghi %r3, -8
|
||
|
|
; CHECK: lxdb %f0, 0(%r3)
|
||
|
|
; CHECK: std %f0, 0(%r2)
|
||
|
|
; CHECK: std %f2, 8(%r2)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%ptr = getelementptr double, double *%base, i64 -1
|
||
|
|
%val = load double, double *%ptr
|
||
|
|
%res = call fp128 @llvm.experimental.constrained.fpext.f128.f64(double %val,
|
||
|
|
metadata !"fpexcept.strict") #0
|
||
|
|
store fp128 %res, fp128 *%dst
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
; Check that LXDB allows indices.
|
||
|
|
define void @f6(fp128 *%dst, double *%base, i64 %index) #0 {
|
||
|
|
; CHECK-LABEL: f6:
|
||
|
|
; CHECK: sllg %r1, %r4, 3
|
||
|
|
; CHECK: lxdb %f0, 800(%r1,%r3)
|
||
|
|
; CHECK: std %f0, 0(%r2)
|
||
|
|
; CHECK: std %f2, 8(%r2)
|
||
|
|
; CHECK: br %r14
|
||
|
|
%ptr1 = getelementptr double, double *%base, i64 %index
|
||
|
|
%ptr2 = getelementptr double, double *%ptr1, i64 100
|
||
|
|
%val = load double, double *%ptr2
|
||
|
|
%res = call fp128 @llvm.experimental.constrained.fpext.f128.f64(double %val,
|
||
|
|
metadata !"fpexcept.strict") #0
|
||
|
|
store fp128 %res, fp128 *%dst
|
||
|
|
ret void
|
||
|
|
}
|
||
|
|
|
||
|
|
attributes #0 = { strictfp }
|