derek.holloway
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101 lines
2.2 KiB
LLVM
101 lines
2.2 KiB
LLVM
; Test the Test Data Class instruction logic operation conversion from
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; signbit extraction.
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;
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; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s --check-prefixes=CHECK,Z10
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; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s \
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; RUN: --check-prefixes=CHECK,Z13
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;
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; Extract sign bit.
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define i32 @f0(half %x) {
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; CHECK-LABEL: f0
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; Z10: lgdr %r0, %f0
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; Z10: srlg %r2, %r0, 63
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; Z13: vlgvh %r0, %v0, 0
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; Z13: risblg %r2, %r0, 31, 159, 49
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%cast = bitcast half %x to i16
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%res = icmp slt i16 %cast, 0
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%xres = zext i1 %res to i32
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ret i32 %xres
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}
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; Extract sign bit.
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define i32 @f1(float %x) {
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; CHECK-LABEL: f1
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; CHECK: tceb %f0, 1365
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%cast = bitcast float %x to i32
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%res = icmp slt i32 %cast, 0
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%xres = zext i1 %res to i32
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ret i32 %xres
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}
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; Extract negated sign bit.
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define i32 @f2(float %x) {
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; CHECK-LABEL: f2
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; CHECK: tceb %f0, 2730
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%cast = bitcast float %x to i32
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%res = icmp sgt i32 %cast, -1
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%xres = zext i1 %res to i32
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ret i32 %xres
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}
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; Extract sign bit.
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define i32 @f3(double %x) {
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; CHECK-LABEL: f3
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; CHECK: tcdb %f0, 1365
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%cast = bitcast double %x to i64
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%res = icmp slt i64 %cast, 0
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%xres = zext i1 %res to i32
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ret i32 %xres
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}
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; Extract negated sign bit.
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define i32 @f4(double %x) {
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; CHECK-LABEL: f4
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; CHECK: tcdb %f0, 2730
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%cast = bitcast double %x to i64
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%res = icmp sgt i64 %cast, -1
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%xres = zext i1 %res to i32
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ret i32 %xres
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}
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; Extract sign bit.
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define i32 @f5(fp128 %x) {
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; CHECK-LABEL: f5
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; CHECK: tcxb %f0, 1365
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%cast = bitcast fp128 %x to i128
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%res = icmp slt i128 %cast, 0
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%xres = zext i1 %res to i32
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ret i32 %xres
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}
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; Extract negated sign bit.
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define i32 @f6(fp128 %x) {
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; CHECK-LABEL: f6
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; CHECK: tcxb %f0, 2730
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%cast = bitcast fp128 %x to i128
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%res = icmp sgt i128 %cast, -1
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%xres = zext i1 %res to i32
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ret i32 %xres
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}
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; Wrong const.
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define i32 @f7(float %x) {
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; CHECK-LABEL: f7
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; CHECK-NOT: tceb
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%cast = bitcast float %x to i32
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%res = icmp slt i32 %cast, -1
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%xres = zext i1 %res to i32
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ret i32 %xres
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}
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; Wrong pred.
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define i32 @f8(float %x) {
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; CHECK-LABEL: f8
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; CHECK-NOT: tceb
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%cast = bitcast float %x to i32
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%res = icmp eq i32 %cast, 0
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%xres = zext i1 %res to i32
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ret i32 %xres
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}
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