1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc < %s -mtriple=i386-unknown-linux-gnu | FileCheck %s --check-prefix=X86 3; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s --check-prefix=X64 4 5@a = common dso_local global i32 0, align 4 6@b = common dso_local global i32 0, align 4 7@c = common dso_local global i32 0, align 4 8@e = common dso_local global i32 0, align 4 9@x = common dso_local global i32 0, align 4 10@f = common dso_local global i32 0, align 4 11@h = common dso_local global i32 0, align 4 12@i = common dso_local global i32 0, align 4 13 14; Test -Os to make sure immediates with multiple users don't get pulled in to 15; instructions (8-bit immediates are exceptions). 16 17define dso_local i32 @foo() optsize { 18; X86-LABEL: foo: 19; X86: # %bb.0: # %entry 20; X86-NEXT: movl $1234, %eax # imm = 0x4D2 21; X86-NEXT: movl %eax, a 22; X86-NEXT: movl %eax, b 23; X86-NEXT: movl $12, c 24; X86-NEXT: cmpl $12, e 25; X86-NEXT: jne .LBB0_2 26; X86-NEXT: # %bb.1: # %if.then 27; X86-NEXT: movl $1, x 28; X86-NEXT: .LBB0_2: # %if.end 29; X86-NEXT: movl $1234, f # imm = 0x4D2 30; X86-NEXT: movl $555, %eax # imm = 0x22B 31; X86-NEXT: movl %eax, h 32; X86-NEXT: addl %eax, i 33; X86-NEXT: xorl %eax, %eax 34; X86-NEXT: retl 35; 36; X64-LABEL: foo: 37; X64: # %bb.0: # %entry 38; X64-NEXT: movl $1234, %eax # imm = 0x4D2 39; X64-NEXT: movl %eax, a(%rip) 40; X64-NEXT: movl %eax, b(%rip) 41; X64-NEXT: movl $12, c(%rip) 42; X64-NEXT: cmpl $12, e(%rip) 43; X64-NEXT: jne .LBB0_2 44; X64-NEXT: # %bb.1: # %if.then 45; X64-NEXT: movl $1, x(%rip) 46; X64-NEXT: .LBB0_2: # %if.end 47; X64-NEXT: movl $1234, f(%rip) # imm = 0x4D2 48; X64-NEXT: movl $555, %eax # imm = 0x22B 49; X64-NEXT: movl %eax, h(%rip) 50; X64-NEXT: addl %eax, i(%rip) 51; X64-NEXT: xorl %eax, %eax 52; X64-NEXT: retq 53entry: 54 store i32 1234, i32* @a 55 store i32 1234, i32* @b 56 store i32 12, i32* @c 57 %0 = load i32, i32* @e 58 %cmp = icmp eq i32 %0, 12 59 br i1 %cmp, label %if.then, label %if.end 60 61if.then: ; preds = %entry 62 store i32 1, i32* @x 63 br label %if.end 64 65; New block.. Make sure 1234 isn't live across basic blocks from before. 66if.end: ; preds = %if.then, %entry 67 store i32 1234, i32* @f 68 store i32 555, i32* @h 69 %1 = load i32, i32* @i 70 %add1 = add nsw i32 %1, 555 71 store i32 %add1, i32* @i 72 ret i32 0 73} 74 75; Test PGSO to make sure immediates with multiple users don't get pulled in to 76; instructions (8-bit immediates are exceptions). 77 78define dso_local i32 @foo_pgso() !prof !14 { 79; X86-LABEL: foo_pgso: 80; X86: # %bb.0: # %entry 81; X86-NEXT: movl $1234, %eax # imm = 0x4D2 82; X86-NEXT: movl %eax, a 83; X86-NEXT: movl %eax, b 84; X86-NEXT: movl $12, c 85; X86-NEXT: cmpl $12, e 86; X86-NEXT: jne .LBB1_2 87; X86-NEXT: # %bb.1: # %if.then 88; X86-NEXT: movl $1, x 89; X86-NEXT: .LBB1_2: # %if.end 90; X86-NEXT: movl $1234, f # imm = 0x4D2 91; X86-NEXT: movl $555, %eax # imm = 0x22B 92; X86-NEXT: movl %eax, h 93; X86-NEXT: addl %eax, i 94; X86-NEXT: xorl %eax, %eax 95; X86-NEXT: retl 96; 97; X64-LABEL: foo_pgso: 98; X64: # %bb.0: # %entry 99; X64-NEXT: movl $1234, %eax # imm = 0x4D2 100; X64-NEXT: movl %eax, a(%rip) 101; X64-NEXT: movl %eax, b(%rip) 102; X64-NEXT: movl $12, c(%rip) 103; X64-NEXT: cmpl $12, e(%rip) 104; X64-NEXT: jne .LBB1_2 105; X64-NEXT: # %bb.1: # %if.then 106; X64-NEXT: movl $1, x(%rip) 107; X64-NEXT: .LBB1_2: # %if.end 108; X64-NEXT: movl $1234, f(%rip) # imm = 0x4D2 109; X64-NEXT: movl $555, %eax # imm = 0x22B 110; X64-NEXT: movl %eax, h(%rip) 111; X64-NEXT: addl %eax, i(%rip) 112; X64-NEXT: xorl %eax, %eax 113; X64-NEXT: retq 114entry: 115 store i32 1234, i32* @a 116 store i32 1234, i32* @b 117 store i32 12, i32* @c 118 %0 = load i32, i32* @e 119 %cmp = icmp eq i32 %0, 12 120 br i1 %cmp, label %if.then, label %if.end 121 122if.then: ; preds = %entry 123 store i32 1, i32* @x 124 br label %if.end 125 126; New block.. Make sure 1234 isn't live across basic blocks from before. 127if.end: ; preds = %if.then, %entry 128 store i32 1234, i32* @f 129 store i32 555, i32* @h 130 %1 = load i32, i32* @i 131 %add1 = add nsw i32 %1, 555 132 store i32 %add1, i32* @i 133 ret i32 0 134} 135 136; Test -O2 to make sure that all immediates get pulled in to their users. 137define dso_local i32 @foo2() { 138; X86-LABEL: foo2: 139; X86: # %bb.0: # %entry 140; X86-NEXT: movl $1234, a # imm = 0x4D2 141; X86-NEXT: movl $1234, b # imm = 0x4D2 142; X86-NEXT: xorl %eax, %eax 143; X86-NEXT: retl 144; 145; X64-LABEL: foo2: 146; X64: # %bb.0: # %entry 147; X64-NEXT: movl $1234, a(%rip) # imm = 0x4D2 148; X64-NEXT: movl $1234, b(%rip) # imm = 0x4D2 149; X64-NEXT: xorl %eax, %eax 150; X64-NEXT: retq 151entry: 152 store i32 1234, i32* @a 153 store i32 1234, i32* @b 154 ret i32 0 155} 156 157declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i1) #1 158 159@AA = common dso_local global [100 x i8] zeroinitializer, align 1 160 161; memset gets lowered in DAG. Constant merging should hoist all the 162; immediates used to store to the individual memory locations. Make 163; sure we don't directly store the immediates. 164define dso_local void @foomemset() optsize { 165; X86-LABEL: foomemset: 166; X86: # %bb.0: # %entry 167; X86-NEXT: movl $555819297, %eax # imm = 0x21212121 168; X86-NEXT: movl %eax, AA+20 169; X86-NEXT: movl %eax, AA+16 170; X86-NEXT: movl %eax, AA+12 171; X86-NEXT: movl %eax, AA+8 172; X86-NEXT: movl %eax, AA+4 173; X86-NEXT: movl %eax, AA 174; X86-NEXT: retl 175; 176; X64-LABEL: foomemset: 177; X64: # %bb.0: # %entry 178; X64-NEXT: movabsq $2387225703656530209, %rax # imm = 0x2121212121212121 179; X64-NEXT: movq %rax, AA+16(%rip) 180; X64-NEXT: movq %rax, AA+8(%rip) 181; X64-NEXT: movq %rax, AA(%rip) 182; X64-NEXT: retq 183entry: 184 call void @llvm.memset.p0i8.i32(i8* getelementptr inbounds ([100 x i8], [100 x i8]* @AA, i32 0, i32 0), i8 33, i32 24, i1 false) 185 ret void 186} 187 188; memset gets lowered in DAG. Constant merging should hoist all the 189; immediates used to store to the individual memory locations. Make 190; sure we don't directly store the immediates. 191define dso_local void @foomemset_pgso() !prof !14 { 192; X86-LABEL: foomemset_pgso: 193; X86: # %bb.0: # %entry 194; X86-NEXT: movl $555819297, %eax # imm = 0x21212121 195; X86-NEXT: movl %eax, AA+20 196; X86-NEXT: movl %eax, AA+16 197; X86-NEXT: movl %eax, AA+12 198; X86-NEXT: movl %eax, AA+8 199; X86-NEXT: movl %eax, AA+4 200; X86-NEXT: movl %eax, AA 201; X86-NEXT: retl 202; 203; X64-LABEL: foomemset_pgso: 204; X64: # %bb.0: # %entry 205; X64-NEXT: movabsq $2387225703656530209, %rax # imm = 0x2121212121212121 206; X64-NEXT: movq %rax, AA+16(%rip) 207; X64-NEXT: movq %rax, AA+8(%rip) 208; X64-NEXT: movq %rax, AA(%rip) 209; X64-NEXT: retq 210entry: 211 call void @llvm.memset.p0i8.i32(i8* getelementptr inbounds ([100 x i8], [100 x i8]* @AA, i32 0, i32 0), i8 33, i32 24, i1 false) 212 ret void 213} 214 215!llvm.module.flags = !{!0} 216!0 = !{i32 1, !"ProfileSummary", !1} 217!1 = !{!2, !3, !4, !5, !6, !7, !8, !9} 218!2 = !{!"ProfileFormat", !"InstrProf"} 219!3 = !{!"TotalCount", i64 10000} 220!4 = !{!"MaxCount", i64 10} 221!5 = !{!"MaxInternalCount", i64 1} 222!6 = !{!"MaxFunctionCount", i64 1000} 223!7 = !{!"NumCounts", i64 3} 224!8 = !{!"NumFunctions", i64 3} 225!9 = !{!"DetailedSummary", !10} 226!10 = !{!11, !12, !13} 227!11 = !{i32 10000, i64 100, i32 1} 228!12 = !{i32 999000, i64 100, i32 1} 229!13 = !{i32 999999, i64 1, i32 2} 230!14 = !{!"function_entry_count", i64 0} 231