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https://github.com/c64scene-ar/llvm-6502.git
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b503b49b51
This adds all CodeGen tests for the SystemZ target. This version of the patch incorporates feedback from a review by Sean Silva. Thanks to all reviewers! Patch by Richard Sandiford. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181204 91177308-0d34-0410-b5e6-96231b3b80d8
41 lines
1018 B
LLVM
41 lines
1018 B
LLVM
; Test floating-point absolute.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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; Test f32.
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declare float @llvm.fabs.f32(float %f)
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define float @f1(float %f) {
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; CHECK: f1:
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; CHECK: lpebr %f0, %f0
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; CHECK: br %r14
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%res = call float @llvm.fabs.f32(float %f)
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ret float %res
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}
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; Test f64.
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declare double @llvm.fabs.f64(double %f)
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define double @f2(double %f) {
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; CHECK: f2:
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; CHECK: lpdbr %f0, %f0
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; CHECK: br %r14
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%res = call double @llvm.fabs.f64(double %f)
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ret double %res
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}
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; Test f128. With the loads and stores, a pure absolute would probably
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; be better implemented using an NI on the upper byte. Do some extra
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; processing so that using FPRs is unequivocally better.
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declare fp128 @llvm.fabs.f128(fp128 %f)
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define void @f3(fp128 *%ptr, fp128 *%ptr2) {
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; CHECK: f3:
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; CHECK: lpxbr
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; CHECK: dxbr
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; CHECK: br %r14
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%orig = load fp128 *%ptr
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%abs = call fp128 @llvm.fabs.f128(fp128 %orig)
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%op2 = load fp128 *%ptr2
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%res = fdiv fp128 %abs, %op2
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store fp128 %res, fp128 *%ptr
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ret void
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}
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