derek.holloway
7502bf64a4
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95 lines
3.9 KiB
LLVM
95 lines
3.9 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
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; RUN: not llc < %s -mtriple=nvptx -mattr=+ptx72 -mcpu=sm_52 2>&1 | FileCheck %s --check-prefixes=CHECK-FAILS
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; RUN: not llc < %s -mtriple=nvptx -mattr=+ptx73 -mcpu=sm_50 2>&1 | FileCheck %s --check-prefixes=CHECK-FAILS
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; RUN: llc < %s -mtriple=nvptx -mattr=+ptx73 -mcpu=sm_52 | FileCheck %s --check-prefixes=CHECK-32
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; RUN: llc < %s -mtriple=nvptx64 -mattr=+ptx73 -mcpu=sm_52 | FileCheck %s --check-prefixes=CHECK-64
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; RUN: %if ptxas-isa-7.3 && ptxas-ptr32 %{ llc < %s -mtriple=nvptx -mattr=+ptx73 -mcpu=sm_52 | %ptxas-verify %}
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; RUN: %if ptxas-isa-7.3 %{ llc < %s -mtriple=nvptx64 -mattr=+ptx73 -mcpu=sm_52 | %ptxas-verify %}
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; CHECK-FAILS: in function test_dynamic_stackalloc{{.*}}: Support for dynamic alloca introduced in PTX ISA version 7.3 and requires target sm_52.
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define i32 @test_dynamic_stackalloc(i64 %n) {
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; CHECK-32-LABEL: test_dynamic_stackalloc(
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; CHECK-32: {
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; CHECK-32-NEXT: .reg .b32 %r<7>;
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; CHECK-32-EMPTY:
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; CHECK-32-NEXT: // %bb.0:
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; CHECK-32-NEXT: ld.param.b32 %r1, [test_dynamic_stackalloc_param_0];
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; CHECK-32-NEXT: add.s32 %r2, %r1, 7;
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; CHECK-32-NEXT: and.b32 %r3, %r2, -8;
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; CHECK-32-NEXT: alloca.u32 %r4, %r3, 16;
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; CHECK-32-NEXT: cvta.local.u32 %r5, %r4;
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; CHECK-32-NEXT: { // callseq 0, 0
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; CHECK-32-NEXT: .param .b32 param0;
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; CHECK-32-NEXT: .param .b32 retval0;
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; CHECK-32-NEXT: st.param.b32 [param0], %r5;
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; CHECK-32-NEXT: call.uni (retval0), bar, (param0);
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; CHECK-32-NEXT: ld.param.b32 %r6, [retval0];
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; CHECK-32-NEXT: } // callseq 0
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; CHECK-32-NEXT: st.param.b32 [func_retval0], %r6;
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; CHECK-32-NEXT: ret;
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;
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; CHECK-64-LABEL: test_dynamic_stackalloc(
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; CHECK-64: {
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; CHECK-64-NEXT: .reg .b32 %r<2>;
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; CHECK-64-NEXT: .reg .b64 %rd<6>;
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; CHECK-64-EMPTY:
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; CHECK-64-NEXT: // %bb.0:
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; CHECK-64-NEXT: ld.param.b64 %rd1, [test_dynamic_stackalloc_param_0];
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; CHECK-64-NEXT: add.s64 %rd2, %rd1, 7;
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; CHECK-64-NEXT: and.b64 %rd3, %rd2, -8;
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; CHECK-64-NEXT: alloca.u64 %rd4, %rd3, 16;
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; CHECK-64-NEXT: cvta.local.u64 %rd5, %rd4;
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; CHECK-64-NEXT: { // callseq 0, 0
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; CHECK-64-NEXT: .param .b64 param0;
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; CHECK-64-NEXT: .param .b32 retval0;
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; CHECK-64-NEXT: st.param.b64 [param0], %rd5;
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; CHECK-64-NEXT: call.uni (retval0), bar, (param0);
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; CHECK-64-NEXT: ld.param.b32 %r1, [retval0];
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; CHECK-64-NEXT: } // callseq 0
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; CHECK-64-NEXT: st.param.b32 [func_retval0], %r1;
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; CHECK-64-NEXT: ret;
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%alloca = alloca i8, i64 %n, align 16
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%call = call i32 @bar(ptr %alloca)
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ret i32 %call
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}
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define float @test_dynamic_stackalloc_unaligned(i64 %0) {
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; CHECK-32-LABEL: test_dynamic_stackalloc_unaligned(
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; CHECK-32: {
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; CHECK-32-NEXT: .reg .b32 %r<7>;
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; CHECK-32-EMPTY:
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; CHECK-32-NEXT: // %bb.0:
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; CHECK-32-NEXT: ld.param.b32 %r1, [test_dynamic_stackalloc_unaligned_param_0];
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; CHECK-32-NEXT: shl.b32 %r2, %r1, 2;
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; CHECK-32-NEXT: add.s32 %r3, %r2, 7;
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; CHECK-32-NEXT: and.b32 %r4, %r3, -8;
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; CHECK-32-NEXT: alloca.u32 %r5, %r4, 8;
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; CHECK-32-NEXT: ld.local.b32 %r6, [%r5];
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; CHECK-32-NEXT: st.param.b32 [func_retval0], %r6;
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; CHECK-32-NEXT: ret;
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;
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; CHECK-64-LABEL: test_dynamic_stackalloc_unaligned(
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; CHECK-64: {
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; CHECK-64-NEXT: .reg .b32 %r<2>;
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; CHECK-64-NEXT: .reg .b64 %rd<6>;
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; CHECK-64-EMPTY:
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; CHECK-64-NEXT: // %bb.0:
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; CHECK-64-NEXT: ld.param.b64 %rd1, [test_dynamic_stackalloc_unaligned_param_0];
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; CHECK-64-NEXT: shl.b64 %rd2, %rd1, 2;
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; CHECK-64-NEXT: add.s64 %rd3, %rd2, 7;
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; CHECK-64-NEXT: and.b64 %rd4, %rd3, -8;
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; CHECK-64-NEXT: alloca.u64 %rd5, %rd4, 8;
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; CHECK-64-NEXT: ld.local.b32 %r1, [%rd5];
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; CHECK-64-NEXT: st.param.b32 [func_retval0], %r1;
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; CHECK-64-NEXT: ret;
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%4 = alloca float, i64 %0, align 4
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%5 = getelementptr float, ptr %4, i64 0
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%6 = load float, ptr %5, align 4
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ret float %6
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}
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declare i32 @bar(ptr)
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