738c135ee0
These did not have proper floating point uses so weren't representative samples. The bitcast inserted by lowering could be absorbed by the load/store on the source/use.
71 lines
1.9 KiB
LLVM
71 lines
1.9 KiB
LLVM
; Test long double atomic loads. These are emitted by the Clang FE as i128
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; loads with a bitcast, and this test case gets converted into that form as
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; well by the AtomicExpand pass.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck -check-prefixes=CHECK,BASE %s
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck -check-prefixes=CHECK,Z13 %s
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define void @f1(ptr %ret, ptr %src) {
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; CHECK-LABEL: f1:
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; CHECK: # %bb.0:
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; CHECK-NEXT: lpq %r0, 0(%r3)
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; CHECK-NEXT: stg %r1, 8(%r2)
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; CHECK-NEXT: stg %r0, 0(%r2)
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; CHECK-NEXT: br %r14
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%val = load atomic fp128, ptr %src seq_cst, align 16
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store fp128 %val, ptr %ret, align 8
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ret void
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}
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define void @f1_fpuse(ptr %ret, ptr %src) {
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; CHECK-LABEL: f1_fpuse:
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; CHECK: # %bb.0:
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; BASE-NEXT: aghi %r15, -176
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; BASE-NEXT: .cfi_def_cfa_offset 336
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; CHECK-NEXT: lpq %r0, 0(%r3)
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; BASE-NEXT: stg %r1, 168(%r15)
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; BASE-NEXT: stg %r0, 160(%r15)
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; BASE-NEXT: ld %f0, 160(%r15)
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; BASE-NEXT: ld %f2, 168(%r15)
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; Z13-NEXT: vlvgp %v0, %r0, %r1
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; Z13-NEXT: vrepg %v2, %v0, 1
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; CHECK-NEXT: axbr %f0, %f0
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; CHECK-NEXT: std %f0, 0(%r2)
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; CHECK-NEXT: std %f2, 8(%r2)
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; BASE-NEXT: aghi %r15, 176
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; CHECK-NEXT: br %r14
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%val = load atomic fp128, ptr %src seq_cst, align 16
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%use = fadd fp128 %val, %val
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store fp128 %use, ptr %ret, align 8
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ret void
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}
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define void @f2(ptr %ret, ptr %src) {
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; CHECK-LABEL: f2:
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; CHECK: brasl %r14, __atomic_load@PLT
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%val = load atomic fp128, ptr %src seq_cst, align 8
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store fp128 %val, ptr %ret, align 8
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ret void
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}
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define void @f2_fpuse(ptr %ret, ptr %src) {
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; CHECK-LABEL: f2_fpuse:
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; CHECK: brasl %r14, __atomic_load@PLT
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; CHECK-NEXT: ld %f0, 160(%r15)
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; CHECK-NEXT: ld %f2, 168(%r15)
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; CHECK-NEXT: axbr %f0, %f0
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; CHECK-NEXT: std %f0, 0(%r13)
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; CHECK-NEXT: std %f2, 8(%r13)
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; CHECK-NEXT: lmg %r13, %r15, 280(%r15)
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; CHECK-NEXT: br %r14
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%val = load atomic fp128, ptr %src seq_cst, align 8
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%use = fadd fp128 %val, %val
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store fp128 %use, ptr %ret, align 8
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ret void
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}
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