diff options
Diffstat (limited to 'llvm/test/CodeGen/ARM/hoist-and-by-const-from-lshr-in-eqcmp-zero.ll')
| -rw-r--r-- | llvm/test/CodeGen/ARM/hoist-and-by-const-from-lshr-in-eqcmp-zero.ll | 64 |
1 files changed, 14 insertions, 50 deletions
diff --git a/llvm/test/CodeGen/ARM/hoist-and-by-const-from-lshr-in-eqcmp-zero.ll b/llvm/test/CodeGen/ARM/hoist-and-by-const-from-lshr-in-eqcmp-zero.ll index cc97f2f0155..bf029ee862a 100644 --- a/llvm/test/CodeGen/ARM/hoist-and-by-const-from-lshr-in-eqcmp-zero.ll +++ b/llvm/test/CodeGen/ARM/hoist-and-by-const-from-lshr-in-eqcmp-zero.ll @@ -967,52 +967,25 @@ define i1 @scalar_i32_x_is_const_eq(i32 %y) nounwind { ret i1 %res } define i1 @scalar_i32_x_is_const2_eq(i32 %y) nounwind { -; ARM6-LABEL: scalar_i32_x_is_const2_eq: -; ARM6: @ %bb.0: -; ARM6-NEXT: ldr r2, .LCPI19_0 -; ARM6-NEXT: mov r1, #1 -; ARM6-NEXT: and r0, r2, r1, lsr r0 -; ARM6-NEXT: clz r0, r0 -; ARM6-NEXT: lsr r0, r0, #5 -; ARM6-NEXT: bx lr -; ARM6-NEXT: .p2align 2 -; ARM6-NEXT: @ %bb.1: -; ARM6-NEXT: .LCPI19_0: -; ARM6-NEXT: .long 2857740885 @ 0xaa55aa55 -; -; ARM78-LABEL: scalar_i32_x_is_const2_eq: -; ARM78: @ %bb.0: -; ARM78-NEXT: movw r1, #43605 -; ARM78-NEXT: mov r2, #1 -; ARM78-NEXT: movt r1, #43605 -; ARM78-NEXT: and r0, r1, r2, lsr r0 -; ARM78-NEXT: clz r0, r0 -; ARM78-NEXT: lsr r0, r0, #5 -; ARM78-NEXT: bx lr +; ARM-LABEL: scalar_i32_x_is_const2_eq: +; ARM: @ %bb.0: +; ARM-NEXT: mov r1, #1 +; ARM-NEXT: eor r0, r1, r1, lsr r0 +; ARM-NEXT: bx lr ; ; THUMB6-LABEL: scalar_i32_x_is_const2_eq: ; THUMB6: @ %bb.0: ; THUMB6-NEXT: movs r1, #1 ; THUMB6-NEXT: lsrs r1, r0 -; THUMB6-NEXT: ldr r2, .LCPI19_0 -; THUMB6-NEXT: ands r2, r1 -; THUMB6-NEXT: rsbs r0, r2, #0 -; THUMB6-NEXT: adcs r0, r2 +; THUMB6-NEXT: rsbs r0, r1, #0 +; THUMB6-NEXT: adcs r0, r1 ; THUMB6-NEXT: bx lr -; THUMB6-NEXT: .p2align 2 -; THUMB6-NEXT: @ %bb.1: -; THUMB6-NEXT: .LCPI19_0: -; THUMB6-NEXT: .long 2857740885 @ 0xaa55aa55 ; ; THUMB78-LABEL: scalar_i32_x_is_const2_eq: ; THUMB78: @ %bb.0: ; THUMB78-NEXT: movs r1, #1 ; THUMB78-NEXT: lsr.w r0, r1, r0 -; THUMB78-NEXT: movw r1, #43605 -; THUMB78-NEXT: movt r1, #43605 -; THUMB78-NEXT: ands r0, r1 -; THUMB78-NEXT: clz r0, r0 -; THUMB78-NEXT: lsrs r0, r0, #5 +; THUMB78-NEXT: eor r0, r0, #1 ; THUMB78-NEXT: bx lr %t0 = lshr i32 1, %y %t1 = and i32 %t0, 2857740885 @@ -1029,8 +1002,7 @@ define i1 @negative_scalar_i8_bitsinmiddle_slt(i8 %x, i8 %y) nounwind { ; ARM6: @ %bb.0: ; ARM6-NEXT: uxtb r1, r1 ; ARM6-NEXT: mov r2, #24 -; ARM6-NEXT: and r0, r0, r2, lsr r1 -; ARM6-NEXT: sxtb r1, r0 +; ARM6-NEXT: and r1, r0, r2, lsr r1 ; ARM6-NEXT: mov r0, #0 ; ARM6-NEXT: cmp r1, #0 ; ARM6-NEXT: movmi r0, #1 @@ -1040,8 +1012,7 @@ define i1 @negative_scalar_i8_bitsinmiddle_slt(i8 %x, i8 %y) nounwind { ; ARM78: @ %bb.0: ; ARM78-NEXT: uxtb r1, r1 ; ARM78-NEXT: mov r2, #24 -; ARM78-NEXT: and r0, r0, r2, lsr r1 -; ARM78-NEXT: sxtb r1, r0 +; ARM78-NEXT: and r1, r0, r2, lsr r1 ; ARM78-NEXT: mov r0, #0 ; ARM78-NEXT: cmp r1, #0 ; ARM78-NEXT: movwmi r0, #1 @@ -1053,8 +1024,6 @@ define i1 @negative_scalar_i8_bitsinmiddle_slt(i8 %x, i8 %y) nounwind { ; THUMB6-NEXT: movs r2, #24 ; THUMB6-NEXT: lsrs r2, r1 ; THUMB6-NEXT: ands r2, r0 -; THUMB6-NEXT: sxtb r0, r2 -; THUMB6-NEXT: cmp r0, #0 ; THUMB6-NEXT: bmi .LBB20_2 ; THUMB6-NEXT: @ %bb.1: ; THUMB6-NEXT: movs r0, #0 @@ -1069,9 +1038,7 @@ define i1 @negative_scalar_i8_bitsinmiddle_slt(i8 %x, i8 %y) nounwind { ; THUMB78-NEXT: movs r2, #24 ; THUMB78-NEXT: lsr.w r1, r2, r1 ; THUMB78-NEXT: ands r0, r1 -; THUMB78-NEXT: sxtb r1, r0 -; THUMB78-NEXT: movs r0, #0 -; THUMB78-NEXT: cmp r1, #0 +; THUMB78-NEXT: mov.w r0, #0 ; THUMB78-NEXT: it mi ; THUMB78-NEXT: movmi r0, #1 ; THUMB78-NEXT: bx lr @@ -1087,8 +1054,7 @@ define i1 @scalar_i8_signbit_eq_with_nonzero(i8 %x, i8 %y) nounwind { ; ARM-NEXT: uxtb r1, r1 ; ARM-NEXT: mov r2, #128 ; ARM-NEXT: and r0, r0, r2, lsr r1 -; ARM-NEXT: mvn r1, #0 -; ARM-NEXT: uxtab r0, r1, r0 +; ARM-NEXT: sub r0, r0, #1 ; ARM-NEXT: clz r0, r0 ; ARM-NEXT: lsr r0, r0, #5 ; ARM-NEXT: bx lr @@ -1099,8 +1065,7 @@ define i1 @scalar_i8_signbit_eq_with_nonzero(i8 %x, i8 %y) nounwind { ; THUMB6-NEXT: movs r2, #128 ; THUMB6-NEXT: lsrs r2, r1 ; THUMB6-NEXT: ands r2, r0 -; THUMB6-NEXT: uxtb r0, r2 -; THUMB6-NEXT: subs r1, r0, #1 +; THUMB6-NEXT: subs r1, r2, #1 ; THUMB6-NEXT: rsbs r0, r1, #0 ; THUMB6-NEXT: adcs r0, r1 ; THUMB6-NEXT: bx lr @@ -1111,8 +1076,7 @@ define i1 @scalar_i8_signbit_eq_with_nonzero(i8 %x, i8 %y) nounwind { ; THUMB78-NEXT: movs r2, #128 ; THUMB78-NEXT: lsr.w r1, r2, r1 ; THUMB78-NEXT: ands r0, r1 -; THUMB78-NEXT: mov.w r1, #-1 -; THUMB78-NEXT: uxtab r0, r1, r0 +; THUMB78-NEXT: subs r0, #1 ; THUMB78-NEXT: clz r0, r0 ; THUMB78-NEXT: lsrs r0, r0, #5 ; THUMB78-NEXT: bx lr |
