75 lines
2.2 KiB
LLVM
75 lines
2.2 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -march=amdgcn -mcpu=gfx900 -global-isel -verify-machineinstrs < %s | FileCheck %s
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declare i64 @llvm.amdgcn.ballot.i64(i1)
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; Test ballot(0)
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define amdgpu_cs i64 @constant_false() {
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; CHECK-LABEL: constant_false:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_mov_b32 s0, 0
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; CHECK-NEXT: s_mov_b32 s1, 0
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; CHECK-NEXT: ; return to shader part epilog
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%ballot = call i64 @llvm.amdgcn.ballot.i64(i1 0)
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ret i64 %ballot
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}
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; Test ballot(1)
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define amdgpu_cs i64 @constant_true() {
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; CHECK-LABEL: constant_true:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: s_mov_b32 s0, exec_lo
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; CHECK-NEXT: s_mov_b32 s1, exec_hi
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; CHECK-NEXT: ; return to shader part epilog
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%ballot = call i64 @llvm.amdgcn.ballot.i64(i1 1)
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ret i64 %ballot
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}
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; Test ballot of a non-comparison operation
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define amdgpu_cs i64 @non_compare(i32 %x) {
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; CHECK-LABEL: non_compare:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: v_and_b32_e32 v0, 1, v0
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; CHECK-NEXT: v_cmp_ne_u32_e64 s[0:1], 0, v0
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; CHECK-NEXT: ; return to shader part epilog
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%trunc = trunc i32 %x to i1
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%ballot = call i64 @llvm.amdgcn.ballot.i64(i1 %trunc)
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ret i64 %ballot
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}
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; Test ballot of comparisons
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define amdgpu_cs i64 @compare_ints(i32 %x, i32 %y) {
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; CHECK-LABEL: compare_ints:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: v_cmp_eq_u32_e64 s[0:1], v0, v1
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; CHECK-NEXT: ; return to shader part epilog
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%cmp = icmp eq i32 %x, %y
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%ballot = call i64 @llvm.amdgcn.ballot.i64(i1 %cmp)
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ret i64 %ballot
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}
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define amdgpu_cs i64 @compare_int_with_constant(i32 %x) {
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; CHECK-LABEL: compare_int_with_constant:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: v_mov_b32_e32 v1, 0x63
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; CHECK-NEXT: v_cmp_ge_i32_e64 s[0:1], v0, v1
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; CHECK-NEXT: ; return to shader part epilog
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%cmp = icmp sge i32 %x, 99
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%ballot = call i64 @llvm.amdgcn.ballot.i64(i1 %cmp)
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ret i64 %ballot
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}
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define amdgpu_cs i64 @compare_floats(float %x, float %y) {
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; CHECK-LABEL: compare_floats:
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; CHECK: ; %bb.0:
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; CHECK-NEXT: v_cmp_gt_f32_e64 s[0:1], v0, v1
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; CHECK-NEXT: ; return to shader part epilog
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%cmp = fcmp ogt float %x, %y
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%ballot = call i64 @llvm.amdgcn.ballot.i64(i1 %cmp)
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ret i64 %ballot
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}
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