a1710eb3cd
The LIT test cases were migrated with the script provided by Nikita Popov. No manual changes were made. Committed without review since no functional changes, after consultation with uweigand.
100 lines
3.1 KiB
LLVM
100 lines
3.1 KiB
LLVM
; Test strict extensions of f64 to f128.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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declare fp128 @llvm.experimental.constrained.fpext.f128.f64(double, metadata)
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; Check register extension.
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define void @f1(ptr %dst, double %val) #0 {
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; CHECK-LABEL: f1:
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; CHECK: lxdbr %f0, %f0
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%res = call fp128 @llvm.experimental.constrained.fpext.f128.f64(double %val,
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metadata !"fpexcept.strict") #0
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store fp128 %res, ptr %dst
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ret void
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}
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; Check the low end of the LXDB range.
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define void @f2(ptr %dst, ptr %ptr) #0 {
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; CHECK-LABEL: f2:
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; CHECK: lxdb %f0, 0(%r3)
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%val = load double, ptr %ptr
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%res = call fp128 @llvm.experimental.constrained.fpext.f128.f64(double %val,
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metadata !"fpexcept.strict") #0
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store fp128 %res, ptr %dst
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ret void
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}
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; Check the high end of the aligned LXDB range.
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define void @f3(ptr %dst, ptr %base) #0 {
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; CHECK-LABEL: f3:
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; CHECK: lxdb %f0, 4088(%r3)
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%ptr = getelementptr double, ptr %base, i64 511
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%val = load double, ptr %ptr
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%res = call fp128 @llvm.experimental.constrained.fpext.f128.f64(double %val,
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metadata !"fpexcept.strict") #0
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store fp128 %res, ptr %dst
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ret void
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}
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; Check the next doubleword up, which needs separate address logic.
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; Other sequences besides this one would be OK.
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define void @f4(ptr %dst, ptr %base) #0 {
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; CHECK-LABEL: f4:
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; CHECK: aghi %r3, 4096
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; CHECK: lxdb %f0, 0(%r3)
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%ptr = getelementptr double, ptr %base, i64 512
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%val = load double, ptr %ptr
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%res = call fp128 @llvm.experimental.constrained.fpext.f128.f64(double %val,
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metadata !"fpexcept.strict") #0
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store fp128 %res, ptr %dst
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ret void
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}
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; Check negative displacements, which also need separate address logic.
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define void @f5(ptr %dst, ptr %base) #0 {
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; CHECK-LABEL: f5:
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; CHECK: aghi %r3, -8
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; CHECK: lxdb %f0, 0(%r3)
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%ptr = getelementptr double, ptr %base, i64 -1
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%val = load double, ptr %ptr
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%res = call fp128 @llvm.experimental.constrained.fpext.f128.f64(double %val,
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metadata !"fpexcept.strict") #0
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store fp128 %res, ptr %dst
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ret void
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}
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; Check that LXDB allows indices.
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define void @f6(ptr %dst, ptr %base, i64 %index) #0 {
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; CHECK-LABEL: f6:
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; CHECK: sllg %r1, %r4, 3
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; CHECK: lxdb %f0, 800(%r1,%r3)
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; CHECK: std %f0, 0(%r2)
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; CHECK: std %f2, 8(%r2)
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; CHECK: br %r14
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%ptr1 = getelementptr double, ptr %base, i64 %index
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%ptr2 = getelementptr double, ptr %ptr1, i64 100
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%val = load double, ptr %ptr2
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%res = call fp128 @llvm.experimental.constrained.fpext.f128.f64(double %val,
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metadata !"fpexcept.strict") #0
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store fp128 %res, ptr %dst
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ret void
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}
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attributes #0 = { strictfp }
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