derek.holloway
7502bf64a4
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45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
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// RUN: %clang_cc1 -triple riscv64 -target-feature +xtheadbb -emit-llvm %s -o - \
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// RUN: -disable-O0-optnone | opt -S -passes=mem2reg \
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// RUN: | FileCheck %s -check-prefix=RV64XTHEADBB
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// RV64XTHEADBB-LABEL: @clz_32(
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// RV64XTHEADBB-NEXT: entry:
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// RV64XTHEADBB-NEXT: [[TMP0:%.*]] = call i32 @llvm.ctlz.i32(i32 [[A:%.*]], i1 false)
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// RV64XTHEADBB-NEXT: ret i32 [[TMP0]]
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//
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unsigned int clz_32(unsigned int a) {
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return __builtin_riscv_clz_32(a);
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}
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// RV64XTHEADBB-LABEL: @clo_32(
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// RV64XTHEADBB-NEXT: entry:
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// RV64XTHEADBB-NEXT: [[NOT:%.*]] = xor i32 [[A:%.*]], -1
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// RV64XTHEADBB-NEXT: [[TMP0:%.*]] = call i32 @llvm.ctlz.i32(i32 [[NOT]], i1 false)
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// RV64XTHEADBB-NEXT: ret i32 [[TMP0]]
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//
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unsigned int clo_32(unsigned int a) {
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return __builtin_riscv_clz_32(~a);
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}
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// RV64XTHEADBB-LABEL: @clz_64(
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// RV64XTHEADBB-NEXT: entry:
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// RV64XTHEADBB-NEXT: [[TMP0:%.*]] = call i64 @llvm.ctlz.i64(i64 [[A:%.*]], i1 false)
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// RV64XTHEADBB-NEXT: [[CAST:%.*]] = trunc i64 [[TMP0]] to i32
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// RV64XTHEADBB-NEXT: ret i32 [[CAST]]
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//
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unsigned int clz_64(unsigned long a) {
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return __builtin_riscv_clz_64(a);
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}
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// RV64XTHEADBB-LABEL: @clo_64(
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// RV64XTHEADBB-NEXT: entry:
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// RV64XTHEADBB-NEXT: [[NOT:%.*]] = xor i64 [[A:%.*]], -1
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// RV64XTHEADBB-NEXT: [[TMP0:%.*]] = call i64 @llvm.ctlz.i64(i64 [[NOT]], i1 false)
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// RV64XTHEADBB-NEXT: [[CAST:%.*]] = trunc i64 [[TMP0]] to i32
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// RV64XTHEADBB-NEXT: ret i32 [[CAST]]
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//
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unsigned int clo_64(unsigned long a) {
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return __builtin_riscv_clz_64(~a);
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}
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