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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -march=amdgcn -mcpu=gfx900 < %s | FileCheck %s
declare i64 @llvm.amdgcn.ballot.i64(i1)
; Test ballot(0)
define amdgpu_cs i64 @constant_false() {
; CHECK-LABEL: constant_false:
; CHECK: ; %bb.0:
; CHECK-NEXT: s_mov_b32 s0, 0
; CHECK-NEXT: s_mov_b32 s1, 0
; CHECK-NEXT: ; return to shader part epilog
%ballot = call i64 @llvm.amdgcn.ballot.i64(i1 0)
ret i64 %ballot
}
; Test ballot(1)
define amdgpu_cs i64 @constant_true() {
; CHECK-LABEL: constant_true:
; CHECK: ; %bb.0:
; CHECK-NEXT: s_mov_b32 s0, exec_lo
; CHECK-NEXT: s_mov_b32 s1, exec_hi
; CHECK-NEXT: ; return to shader part epilog
%ballot = call i64 @llvm.amdgcn.ballot.i64(i1 1)
ret i64 %ballot
}
; Test ballot of a non-comparison operation
define amdgpu_cs i64 @non_compare(i32 %x) {
; CHECK-LABEL: non_compare:
; CHECK: ; %bb.0:
; CHECK-NEXT: v_and_b32_e32 v0, 1, v0
; CHECK-NEXT: v_cmp_ne_u32_e64 s[0:1], 0, v0
; CHECK-NEXT: ; return to shader part epilog
%trunc = trunc i32 %x to i1
%ballot = call i64 @llvm.amdgcn.ballot.i64(i1 %trunc)
ret i64 %ballot
}
; Test ballot of comparisons
define amdgpu_cs i64 @compare_ints(i32 %x, i32 %y) {
; CHECK-LABEL: compare_ints:
; CHECK: ; %bb.0:
; CHECK-NEXT: v_cmp_eq_u32_e64 s[0:1], v0, v1
; CHECK-NEXT: ; return to shader part epilog
%cmp = icmp eq i32 %x, %y
%ballot = call i64 @llvm.amdgcn.ballot.i64(i1 %cmp)
ret i64 %ballot
}
define amdgpu_cs i64 @compare_int_with_constant(i32 %x) {
; CHECK-LABEL: compare_int_with_constant:
; CHECK: ; %bb.0:
; CHECK-NEXT: s_movk_i32 s0, 0x62
; CHECK-NEXT: v_cmp_lt_i32_e64 s[0:1], s0, v0
; CHECK-NEXT: ; return to shader part epilog
%cmp = icmp sge i32 %x, 99
%ballot = call i64 @llvm.amdgcn.ballot.i64(i1 %cmp)
ret i64 %ballot
}
define amdgpu_cs i64 @compare_floats(float %x, float %y) {
; CHECK-LABEL: compare_floats:
; CHECK: ; %bb.0:
; CHECK-NEXT: v_cmp_gt_f32_e64 s[0:1], v0, v1
; CHECK-NEXT: ; return to shader part epilog
%cmp = fcmp ogt float %x, %y
%ballot = call i64 @llvm.amdgcn.ballot.i64(i1 %cmp)
ret i64 %ballot
}
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