1
; Test all condition-code masks that are relevant for CRJ.
3
; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
8
define void @f1(i32 %target) {
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; CHECK: .cfi_def_cfa_offset
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: crje %r2, {{%r[0-9]+}}, .L[[LABEL]]
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%val = call i32 @foo()
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%cond = icmp eq i32 %val, %target
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br i1 %cond, label %loop, label %exit
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define void @f2(i32 %target) {
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; CHECK: .cfi_def_cfa_offset
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: crjlh %r2, {{%r[0-9]+}}, .L[[LABEL]]
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%val = call i32 @foo()
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%cond = icmp ne i32 %val, %target
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br i1 %cond, label %loop, label %exit
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define void @f3(i32 %target) {
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; CHECK: .cfi_def_cfa_offset
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: crjle %r2, {{%r[0-9]+}}, .L[[LABEL]]
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%val = call i32 @foo()
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%cond = icmp sle i32 %val, %target
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br i1 %cond, label %loop, label %exit
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define void @f4(i32 %target) {
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; CHECK: .cfi_def_cfa_offset
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: crjl %r2, {{%r[0-9]+}}, .L[[LABEL]]
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%val = call i32 @foo()
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%cond = icmp slt i32 %val, %target
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br i1 %cond, label %loop, label %exit
64
define void @f5(i32 %target) {
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; CHECK: .cfi_def_cfa_offset
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: crjh %r2, {{%r[0-9]+}}, .L[[LABEL]]
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%val = call i32 @foo()
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%cond = icmp sgt i32 %val, %target
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br i1 %cond, label %loop, label %exit
78
define void @f6(i32 %target) {
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; CHECK: .cfi_def_cfa_offset
81
; CHECK: .L[[LABEL:.*]]:
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; CHECK: crjhe %r2, {{%r[0-9]+}}, .L[[LABEL]]
85
%val = call i32 @foo()
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%cond = icmp sge i32 %val, %target
87
br i1 %cond, label %loop, label %exit
92
; Check that CRJ is used for checking equality with a zero-extending
94
define void @f7(i8 *%targetptr) {
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; CHECK: .cfi_def_cfa_offset
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; CHECK: .L[[LABEL:.*]]:
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; CHECK: llc [[REG:%r[0-5]]],
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; CHECK: crje %r2, [[REG]], .L[[LABEL]]
102
%val = call i32 @foo()
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%byte = load i8 , i8 *%targetptr
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%target = zext i8 %byte to i32
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%cond = icmp eq i32 %val, %target
106
br i1 %cond, label %loop, label %exit
111
; ...and zero-extending i16 loads.
112
define void @f8(i16 *%targetptr) {
114
; CHECK: .cfi_def_cfa_offset
115
; CHECK: .L[[LABEL:.*]]:
116
; CHECK: llh [[REG:%r[0-5]]],
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; CHECK: crje %r2, [[REG]], .L[[LABEL]]
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%val = call i32 @foo()
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%half = load i16 , i16 *%targetptr
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%target = zext i16 %half to i32
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%cond = icmp eq i32 %val, %target
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br i1 %cond, label %loop, label %exit
129
; ...unless the address is a global.
130
define void @f9(i16 *%targetptr) {
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; CHECK: .cfi_def_cfa_offset
133
; CHECK: .L[[LABEL:.*]]:
134
; CHECK: clhrl %r2, g1
135
; CHECK: je .L[[LABEL]]
138
%val = call i32 @foo()
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%half = load i16 , i16 *@g1
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%target = zext i16 %half to i32
141
%cond = icmp eq i32 %val, %target
142
br i1 %cond, label %loop, label %exit
147
; Check that CRJ is used for checking order between two zero-extending
148
; byte loads, even if the original comparison was unsigned.
149
define void @f10(i8 *%targetptr1) {
151
; CHECK: .cfi_def_cfa_offset
152
; CHECK: .L[[LABEL:.*]]:
153
; CHECK-DAG: llc [[REG1:%r[0-5]]], 0(
154
; CHECK-DAG: llc [[REG2:%r[0-5]]], 1(
155
; CHECK: crjl [[REG1]], [[REG2]], .L[[LABEL]]
158
%val = call i32 @foo()
159
%targetptr2 = getelementptr i8, i8 *%targetptr1, i64 1
160
%byte1 = load i8 , i8 *%targetptr1
161
%byte2 = load i8 , i8 *%targetptr2
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%ext1 = zext i8 %byte1 to i32
163
%ext2 = zext i8 %byte2 to i32
164
%cond = icmp ult i32 %ext1, %ext2
165
br i1 %cond, label %loop, label %exit
170
; ...likewise halfword loads.
171
define void @f11(i16 *%targetptr1) {
173
; CHECK: .cfi_def_cfa_offset
174
; CHECK: .L[[LABEL:.*]]:
175
; CHECK-DAG: llh [[REG1:%r[0-5]]], 0(
176
; CHECK-DAG: llh [[REG2:%r[0-5]]], 2(
177
; CHECK: crjl [[REG1]], [[REG2]], .L[[LABEL]]
180
%val = call i32 @foo()
181
%targetptr2 = getelementptr i16, i16 *%targetptr1, i64 1
182
%half1 = load i16 , i16 *%targetptr1
183
%half2 = load i16 , i16 *%targetptr2
184
%ext1 = zext i16 %half1 to i32
185
%ext2 = zext i16 %half2 to i32
186
%cond = icmp ult i32 %ext1, %ext2
187
br i1 %cond, label %loop, label %exit