diff options
Diffstat (limited to 'test/CodeGen/AArch64/arm64-neon-select_cc.ll')
| -rw-r--r-- | test/CodeGen/AArch64/arm64-neon-select_cc.ll | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/arm64-neon-select_cc.ll b/test/CodeGen/AArch64/arm64-neon-select_cc.ll index 95c582a..d334c08 100644 --- a/test/CodeGen/AArch64/arm64-neon-select_cc.ll +++ b/test/CodeGen/AArch64/arm64-neon-select_cc.ll @@ -204,3 +204,18 @@ define <2 x double> @test_select_cc_v2f64(double %a, double %b, <2 x double> %c, %e = select i1 %cmp31, <2 x double> %c, <2 x double> %d ret <2 x double> %e } + +; Special case: when the select condition is an icmp with i1 operands, don't +; do the comparison on vectors. +; Part of PR21549. +define <2 x i32> @test_select_cc_v2i32_icmpi1(i1 %cc, <2 x i32> %a, <2 x i32> %b) { +; CHECK-LABEL: test_select_cc_v2i32_icmpi1: +; CHECK: tst w0, #0x1 +; CHECK: csetm [[MASK:w[0-9]+]], ne +; CHECK: dup [[DUPMASK:v[0-9]+]].2s, [[MASK]] +; CHECK: bsl [[DUPMASK]].8b, v0.8b, v1.8b +; CHECK: mov v0.16b, [[DUPMASK]].16b + %cmp = icmp ne i1 %cc, 0 + %e = select i1 %cmp, <2 x i32> %a, <2 x i32> %b + ret <2 x i32> %e +} |