110 lines
2.6 KiB
LLVM
110 lines
2.6 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -instcombine -S | FileCheck %s
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;
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; Sign-extend
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;
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define i32 @vscale_SExt_i8toi32() vscale_range(1, 127) {
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; CHECK-LABEL: @vscale_SExt_i8toi32(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = call i32 @llvm.vscale.i32()
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; CHECK-NEXT: ret i32 [[TMP0]]
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;
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entry:
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%0 = call i8 @llvm.vscale.i8()
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%1 = sext i8 %0 to i32
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ret i32 %1
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}
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define i32 @vscale_SExt_i8toi32_poison() vscale_range(1, 128) {
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; CHECK-LABEL: @vscale_SExt_i8toi32_poison(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = call i8 @llvm.vscale.i8()
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; CHECK-NEXT: [[TMP1:%.*]] = sext i8 [[TMP0]] to i32
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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entry:
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%0 = call i8 @llvm.vscale.i8()
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%1 = sext i8 %0 to i32
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ret i32 %1
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}
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;
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; Zero-extend
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;
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define i32 @vscale_ZExt_i8toi32() vscale_range(1, 128) {
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; CHECK-LABEL: @vscale_ZExt_i8toi32(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = call i32 @llvm.vscale.i32()
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; CHECK-NEXT: ret i32 [[TMP0]]
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;
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entry:
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%0 = call i8 @llvm.vscale.i8()
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%1 = zext i8 %0 to i32
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ret i32 %1
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}
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define i32 @vscale_ZExt_i8toi32_poison() vscale_range(1, 256) {
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; CHECK-LABEL: @vscale_ZExt_i8toi32_poison(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = call i8 @llvm.vscale.i8()
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; CHECK-NEXT: [[TMP1:%.*]] = zext i8 [[TMP0]] to i32
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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entry:
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%0 = call i8 @llvm.vscale.i8()
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%1 = zext i8 %0 to i32
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ret i32 %1
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}
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;
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; No vscale_range attribute
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;
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define i32 @vscale_ZExt_i8toi32_unknown() {
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; CHECK-LABEL: @vscale_ZExt_i8toi32_unknown(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = call i8 @llvm.vscale.i8()
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; CHECK-NEXT: [[TMP1:%.*]] = zext i8 [[TMP0]] to i32
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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entry:
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%0 = call i8 @llvm.vscale.i8()
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%1 = zext i8 %0 to i32
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ret i32 %1
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}
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;
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; unbounded vscale_range maximum (0)
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;
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define i32 @vscale_SExt_i8toi32_unbounded() vscale_range(1, 0) {
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; CHECK-LABEL: @vscale_SExt_i8toi32_unbounded(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = call i8 @llvm.vscale.i8()
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; CHECK-NEXT: [[TMP1:%.*]] = sext i8 [[TMP0]] to i32
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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entry:
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%0 = call i8 @llvm.vscale.i8()
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%1 = sext i8 %0 to i32
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ret i32 %1
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}
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define i32 @vscale_ZExt_i8toi32_unbounded() vscale_range(1, 0) {
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; CHECK-LABEL: @vscale_ZExt_i8toi32_unbounded(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[TMP0:%.*]] = call i8 @llvm.vscale.i8()
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; CHECK-NEXT: [[TMP1:%.*]] = zext i8 [[TMP0]] to i32
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; CHECK-NEXT: ret i32 [[TMP1]]
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;
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entry:
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%0 = call i8 @llvm.vscale.i8()
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%1 = zext i8 %0 to i32
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ret i32 %1
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}
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declare i8 @llvm.vscale.i8()
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