forked from OSchip/llvm-project
35 lines
1.4 KiB
LLVM
35 lines
1.4 KiB
LLVM
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; RUN: llc < %s -march=nvptx -mcpu=sm_35 | FileCheck %s
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; Verify that the NVPTXLowerAggrCopies pass works as expected - calls to
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; llvm.mem* intrinsics get lowered to loops.
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1) #1
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declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) #1
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define i8* @memcpy_caller(i8* %dst, i8* %src, i64 %n) #0 {
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entry:
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tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %dst, i8* %src, i64 %n, i32 1, i1 false)
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ret i8* %dst
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; CHECK-LABEL: .visible .func (.param .b32 func_retval0) memcpy_caller
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; CHECK: LBB[[LABEL:[_0-9]+]]:
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; CHECK: ld.u8 %rs[[REG:[0-9]+]]
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; CHECK: st.u8 [%r{{[0-9]+}}], %rs[[REG]]
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; CHECK: add.s64 %rd[[COUNTER:[0-9]+]], %rd[[COUNTER]], 1
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; CHECK-NEXT: setp.lt.u64 %p[[PRED:[0-9]+]], %rd[[COUNTER]], %rd
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; CHECK-NEXT: @%p[[PRED]] bra LBB[[LABEL]]
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}
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define i8* @memset_caller(i8* %dst, i32 %c, i64 %n) #0 {
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entry:
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%0 = trunc i32 %c to i8
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tail call void @llvm.memset.p0i8.i64(i8* %dst, i8 %0, i64 %n, i32 1, i1 false)
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ret i8* %dst
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; CHECK-LABEL: .visible .func (.param .b32 func_retval0) memset_caller(
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; CHECK: ld.param.u8 %rs[[REG:[0-9]+]]
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; CHECK: LBB[[LABEL:[_0-9]+]]:
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; CHECK: st.u8 [%r{{[0-9]+}}], %rs[[REG]]
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; CHECK: add.s64 %rd[[COUNTER:[0-9]+]], %rd[[COUNTER]], 1
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; CHECK-NEXT: setp.lt.u64 %p[[PRED:[0-9]+]], %rd[[COUNTER]], %rd
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; CHECK-NEXT: @%p[[PRED]] bra LBB[[LABEL]]
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}
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