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https://github.com/RPCS3/llvm-mirror.git
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9ae1cdf437
The original code attempted to do this, but the std::abs() call didn't actually do anything due to implicit type conversions. Fix the type conversions, and perform the correct check for negative immediates. This probably has very little practical impact, but it's worth fixing just to avoid confusion in the future, I think. Differential Revision: https://reviews.llvm.org/D48907 llvm-svn: 336742
300 lines
5.2 KiB
LLVM
300 lines
5.2 KiB
LLVM
; RUN: llc -mtriple=thumb-eabi -mcpu=arm1156t2-s -mattr=+thumb2 %s -o - | FileCheck %s
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; These tests would be improved by 'movs r0, #0' being rematerialized below the
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; test as 'mov.w r0, #0'.
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; 0x000000bb = 187
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define i32 @f1(i32 %a) {
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; CHECK-LABEL: f1:
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; CHECK: cmp {{.*}}, #187
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%tmp = icmp ne i32 %a, 187
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%ret = select i1 %tmp, i32 42, i32 24
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ret i32 %ret
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}
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; 0x00aa00aa = 11141290
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define i32 @f2(i32 %a) {
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; CHECK-LABEL: f2:
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; CHECK: cmp.w {{.*}}, #11141290
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%tmp = icmp eq i32 %a, 11141290
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%ret = select i1 %tmp, i32 42, i32 24
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ret i32 %ret
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}
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; 0xcc00cc00 = 3422604288
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define i32 @f3(i32 %a) {
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; CHECK-LABEL: f3:
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; CHECK: cmp.w {{.*}}, #-872363008
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%tmp = icmp ne i32 %a, 3422604288
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%ret = select i1 %tmp, i32 42, i32 24
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ret i32 %ret
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}
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; 0xdddddddd = 3722304989
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define i32 @f4(i32 %a) {
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; CHECK-LABEL: f4:
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; CHECK: cmp.w {{.*}}, #-572662307
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%tmp = icmp ne i32 %a, 3722304989
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%ret = select i1 %tmp, i32 42, i32 24
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ret i32 %ret
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}
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; 0x00110000 = 1114112
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define i32 @f5(i32 %a) {
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; CHECK-LABEL: f5:
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; CHECK: cmp.w {{.*}}, #1114112
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%tmp = icmp eq i32 %a, 1114112
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%ret = select i1 %tmp, i32 42, i32 24
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ret i32 %ret
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}
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; Check that we don't do an invalid (a > b) --> !(a < b + 1) transform.
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;
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; CHECK-LABEL: f6:
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; CHECK-NOT: cmp.w {{.*}}, #-2147483648
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; CHECK: bx lr
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define i32 @f6(i32 %a) {
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%tmp = icmp sgt i32 %a, 2147483647
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br i1 %tmp, label %true, label %false
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true:
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ret i32 2
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false:
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ret i32 0
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}
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define i32 @slt_poweroftwo(i32 %a) {
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; CHECK-LABEL: slt_poweroftwo:
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; CHECK: cmp.w r0, #4096
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%b = icmp slt i32 %a, 4096
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @sle_poweroftwo(i32 %a) {
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; CHECK-LABEL: sle_poweroftwo:
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; CHECK: cmp.w r0, #4096
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%b = icmp sle i32 %a, 4096
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @sge_poweroftwo(i32 %a) {
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; CHECK-LABEL: sge_poweroftwo:
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; CHECK: cmp.w r0, #4096
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%b = icmp sge i32 %a, 4096
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @sgt_poweroftwo(i32 %a) {
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; CHECK-LABEL: sgt_poweroftwo:
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; CHECK: cmp.w r0, #4096
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%b = icmp sgt i32 %a, 4096
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @slt_nearpoweroftwo(i32 %a) {
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; CHECK-LABEL: slt_nearpoweroftwo:
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; CHECK: cmp.w r0, #4096
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%b = icmp slt i32 %a, 4097
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @sle_nearpoweroftwo(i32 %a) {
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; CHECK-LABEL: sle_nearpoweroftwo:
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; CHECK: cmp.w r0, #4096
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%b = icmp sle i32 %a, 4095
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @sge_nearpoweroftwo(i32 %a) {
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; CHECK-LABEL: sge_nearpoweroftwo:
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; CHECK: cmp.w r0, #4096
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%b = icmp sge i32 %a, 4097
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @sgt_nearpoweroftwo(i32 %a) {
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; CHECK-LABEL: sgt_nearpoweroftwo:
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; CHECK: cmp.w r0, #4096
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%b = icmp sgt i32 %a, 4095
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @slt_neg_soimm(i32 %a) {
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; CHECK-LABEL: slt_neg_soimm:
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; CHECK: cmn.w r0, #7929856
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%b = icmp slt i32 %a, -7929856
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @sle_neg_soimm(i32 %a) {
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; CHECK-LABEL: sle_neg_soimm:
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; CHECK: cmn.w r0, #7929856
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%b = icmp sle i32 %a, -7929856
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @sge_neg_soimm(i32 %a) {
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; CHECK-LABEL: sge_neg_soimm:
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; CHECK: cmn.w r0, #7929856
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%b = icmp sge i32 %a, -7929856
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @sgt_neg_soimm(i32 %a) {
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; CHECK-LABEL: sgt_neg_soimm:
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; CHECK: cmn.w r0, #7929856
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%b = icmp sgt i32 %a, -7929856
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @slt_notneg_soimm(i32 %a) {
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; CHECK-LABEL: slt_notneg_soimm:
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; CHECK: cmp.w r0, #-2013231104
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%b = icmp slt i32 %a, -2013231104
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @sle_notneg_soimm(i32 %a) {
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; CHECK-LABEL: sle_notneg_soimm:
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; CHECK: cmp.w r0, #-2013231104
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%b = icmp sle i32 %a, -2013231104
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @sge_notneg_soimm(i32 %a) {
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; CHECK-LABEL: sge_notneg_soimm:
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; CHECK: cmp.w r0, #-2013231104
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%b = icmp sge i32 %a, -2013231104
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @sgt_notneg_soimm(i32 %a) {
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; CHECK-LABEL: sgt_notneg_soimm:
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; CHECK: cmp.w r0, #-2013231104
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%b = icmp sgt i32 %a, -2013231104
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @sgt_movw(i32 %a) {
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; CHECK-LABEL: sgt_movw:
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; CHECK: movw r1, #2167
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%b = icmp sgt i32 %a, 2166
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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define i32 @sgt_neg_movw(i32 %a) {
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; CHECK-LABEL: sgt_neg_movw:
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; CHECK: movw r1, #63371
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; CHECK: movt r1, #65535
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%b = icmp sgt i32 %a, -2166
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br i1 %b, label %true, label %false
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true:
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ret i32 1
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false:
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ret i32 2
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}
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