219 lines
6.5 KiB
LLVM
219 lines
6.5 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=aggressive-instcombine -S | FileCheck %s
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declare i32 @strcmp(ptr, ptr)
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@s0 = constant [1 x i8] c"\00"
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@s1 = constant [2 x i8] c"0\00"
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@s2 = constant [3 x i8] c"01\00"
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@s3 = constant [4 x i8] c"012\00"
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@s4 = constant [5 x i8] c"0123\00"
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; Expand strcmp(C, "x"), strcmp(C, "xy").
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define i1 @expand_strcmp_s0(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_s0(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s0)
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s0)
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%cmp = icmp eq i32 %call, 0
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ret i1 %cmp
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}
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define i1 @expand_strcmp_eq_s1(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_eq_s1(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s1)
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%cmp = icmp eq i32 %call, 0
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ret i1 %cmp
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}
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define i1 @expand_strcmp_eq_s1_commuted(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_eq_s1_commuted(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr @s1, ptr [[C:%.*]])
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr @s1, ptr %C)
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%cmp = icmp eq i32 %call, 0
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ret i1 %cmp
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}
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define i1 @expand_strcmp_ne_s1(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_ne_s1(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s1)
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%cmp = icmp ne i32 %call, 0
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ret i1 %cmp
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}
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define i1 @expand_strcmp_sgt_s1(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_sgt_s1(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s1)
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%cmp = icmp sgt i32 %call, 0
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ret i1 %cmp
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}
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define i1 @expand_strcmp_sge_s1(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_sge_s1(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp sge i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s1)
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%cmp = icmp sge i32 %call, 0
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ret i1 %cmp
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}
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define i1 @expand_strcmp_slt_s1(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_slt_s1(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s1)
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%cmp = icmp slt i32 %call, 0
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ret i1 %cmp
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}
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define i1 @expand_strcmp_sle_s1(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_sle_s1(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp sle i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s1)
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%cmp = icmp sle i32 %call, 0
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ret i1 %cmp
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}
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define i1 @expand_strcmp_s1_fail_1(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_s1_fail_1(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CALL]], 1
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s1)
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%cmp = icmp eq i32 %call, 1
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ret i1 %cmp
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}
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define i1 @expand_strcmp_s1_fail_2(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_s1_fail_2(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr @s1, ptr @s1)
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr @s1, ptr @s1)
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%cmp = icmp eq i32 %call, 0
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ret i1 %cmp
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}
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define i32 @expand_strcmp_s1_fail_3(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_s1_fail_3(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s1)
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; CHECK-NEXT: ret i32 [[CALL]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s1)
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ret i32 %call
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}
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define i1 @expand_strcmp_eq_s2(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_eq_s2(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s2)
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s2)
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%cmp = icmp eq i32 %call, 0
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ret i1 %cmp
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}
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define i1 @expand_strcmp_ne_s2(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_ne_s2(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s2)
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; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s2)
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%cmp = icmp ne i32 %call, 0
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ret i1 %cmp
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}
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define i1 @expand_strcmp_sgt_s2(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_sgt_s2(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s2)
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; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s2)
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%cmp = icmp sgt i32 %call, 0
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ret i1 %cmp
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}
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define i1 @expand_strcmp_sge_s2(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_sge_s2(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s2)
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; CHECK-NEXT: [[CMP:%.*]] = icmp sge i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s2)
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%cmp = icmp sge i32 %call, 0
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ret i1 %cmp
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}
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define i1 @expand_strcmp_slt_s2(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_slt_s2(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s2)
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; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s2)
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%cmp = icmp slt i32 %call, 0
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ret i1 %cmp
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}
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define i1 @expand_strcmp_sle_s2(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_sle_s2(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s2)
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; CHECK-NEXT: [[CMP:%.*]] = icmp sle i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s2)
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%cmp = icmp sle i32 %call, 0
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ret i1 %cmp
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}
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define i1 @expand_strcmp_s3(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_s3(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s3)
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s3)
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%cmp = icmp eq i32 %call, 0
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ret i1 %cmp
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}
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define i1 @expand_strcmp_s4(ptr %C) {
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; CHECK-LABEL: @expand_strcmp_s4(
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; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(ptr [[C:%.*]], ptr @s4)
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; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CALL]], 0
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; CHECK-NEXT: ret i1 [[CMP]]
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;
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%call = call i32 @strcmp(ptr %C, ptr @s4)
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%cmp = icmp eq i32 %call, 0
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ret i1 %cmp
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}
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