Revert "[Thumb] Teach ISel how to lower compares of AND bitmasks efficiently"
This reverts commit r281323. It caused chromium test failures and a selfhost failure.
llvm-svn: 281451
diff --git a/llvm/test/CodeGen/Thumb2/float-ops.ll b/llvm/test/CodeGen/Thumb2/float-ops.ll
index f4c0ef0..c9f93f2 100644
--- a/llvm/test/CodeGen/Thumb2/float-ops.ll
+++ b/llvm/test/CodeGen/Thumb2/float-ops.ll
@@ -259,9 +259,9 @@
define float @select_f(float %a, float %b, i1 %c) {
; CHECK-LABEL: select_f:
-; NONE: lsls r2, r2, #31
+; NONE: tst.w r2, #1
; NONE: moveq r0, r1
-; HARD: lsls r0, r0, #31
+; HARD: tst.w r0, #1
; VFP4-ALL: vmovne.f32 s1, s0
; VFP4-ALL: vmov.f32 s0, s1
; FP-ARMv8: vseleq.f32 s0, s1, s0
@@ -271,18 +271,18 @@
define double @select_d(double %a, double %b, i1 %c) {
; CHECK-LABEL: select_d:
-; NONE: ldr{{(.w)?}} [[REG:r[0-9]+]], [sp]
-; NONE: lsls{{(.w)?}} [[REG]], [[REG]], #31
+; NONE: ldr.w [[REG:r[0-9]+]], [sp]
+; NONE: ands [[REG]], [[REG]], #1
; NONE: moveq r0, r2
; NONE: moveq r1, r3
-; SP: lsls r0, r0, #31
+; SP: ands r0, r0, #1
; SP-DAG: vmov [[ALO:r[0-9]+]], [[AHI:r[0-9]+]], d0
; SP-DAG: vmov [[BLO:r[0-9]+]], [[BHI:r[0-9]+]], d1
; SP: itt ne
; SP-DAG: movne [[BLO]], [[ALO]]
; SP-DAG: movne [[BHI]], [[AHI]]
; SP: vmov d0, [[BLO]], [[BHI]]
-; DP: lsls r0, r0, #31
+; DP: tst.w r0, #1
; VFP4-DP: vmovne.f64 d1, d0
; VFP4-DP: vmov.f64 d0, d1
; FP-ARMV8: vseleq.f64 d0, d1, d0