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 f32 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.f32(float, metadata)
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; Check register extension.
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define void @f1(ptr %dst, float %val) #0 {
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; CHECK-LABEL: f1:
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; CHECK: lxebr %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.f32(float %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 LXEB 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: lxeb %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 float, ptr %ptr
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%res = call fp128 @llvm.experimental.constrained.fpext.f128.f32(float %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 LXEB 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: lxeb %f0, 4092(%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 float, ptr %base, i64 1023
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%val = load float, ptr %ptr
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%res = call fp128 @llvm.experimental.constrained.fpext.f128.f32(float %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 word 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: lxeb %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 float, ptr %base, i64 1024
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%val = load float, ptr %ptr
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%res = call fp128 @llvm.experimental.constrained.fpext.f128.f32(float %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, -4
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; CHECK: lxeb %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 float, ptr %base, i64 -1
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%val = load float, ptr %ptr
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%res = call fp128 @llvm.experimental.constrained.fpext.f128.f32(float %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 LXEB 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, 2
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; CHECK: lxeb %f0, 400(%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 float, ptr %base, i64 %index
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%ptr2 = getelementptr float, ptr %ptr1, i64 100
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%val = load float, ptr %ptr2
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%res = call fp128 @llvm.experimental.constrained.fpext.f128.f32(float %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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