41 lines
1.7 KiB
LLVM
41 lines
1.7 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=instcombine -S | FileCheck %s
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define <4 x i16> @trunc_add_nsw(<4 x i32> %0) {
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; CHECK-LABEL: @trunc_add_nsw(
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; CHECK-NEXT: [[TMP2:%.*]] = ashr <4 x i32> [[TMP0:%.*]], <i32 17, i32 17, i32 17, i32 17>
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; CHECK-NEXT: [[TMP3:%.*]] = trunc <4 x i32> [[TMP2]] to <4 x i16>
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; CHECK-NEXT: [[TMP4:%.*]] = add nsw <4 x i16> [[TMP3]], <i16 1, i16 1, i16 1, i16 1>
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; CHECK-NEXT: ret <4 x i16> [[TMP4]]
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;
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%2 = ashr <4 x i32> %0, <i32 17, i32 17, i32 17, i32 17>
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%3 = trunc <4 x i32> %2 to <4 x i16>
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%4 = add <4 x i16> %3, <i16 1, i16 1, i16 1, i16 1>
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ret <4 x i16> %4
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}
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define <4 x i16> @trunc_add_no_nsw(<4 x i32> %0) {
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; CHECK-LABEL: @trunc_add_no_nsw(
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; CHECK-NEXT: [[TMP2:%.*]] = lshr <4 x i32> [[TMP0:%.*]], <i32 16, i32 16, i32 16, i32 16>
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; CHECK-NEXT: [[TMP3:%.*]] = trunc <4 x i32> [[TMP2]] to <4 x i16>
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; CHECK-NEXT: [[TMP4:%.*]] = add <4 x i16> [[TMP3]], <i16 1, i16 1, i16 1, i16 1>
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; CHECK-NEXT: ret <4 x i16> [[TMP4]]
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;
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%2 = ashr <4 x i32> %0, <i32 16, i32 16, i32 16, i32 16>
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%3 = trunc <4 x i32> %2 to <4 x i16>
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%4 = add <4 x i16> %3, <i16 1, i16 1, i16 1, i16 1>
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ret <4 x i16> %4
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}
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define <4 x i16> @trunc_add_mixed(<4 x i32> %0) {
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; CHECK-LABEL: @trunc_add_mixed(
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; CHECK-NEXT: [[TMP2:%.*]] = ashr <4 x i32> [[TMP0:%.*]], <i32 17, i32 16, i32 17, i32 16>
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; CHECK-NEXT: [[TMP3:%.*]] = trunc <4 x i32> [[TMP2]] to <4 x i16>
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; CHECK-NEXT: [[TMP4:%.*]] = add <4 x i16> [[TMP3]], <i16 1, i16 1, i16 1, i16 1>
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; CHECK-NEXT: ret <4 x i16> [[TMP4]]
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;
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%2 = ashr <4 x i32> %0, <i32 17, i32 16, i32 17, i32 16>
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%3 = trunc <4 x i32> %2 to <4 x i16>
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%4 = add <4 x i16> %3, <i16 1, i16 1, i16 1, i16 1>
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ret <4 x i16> %4
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}
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