-; RUN: llc < %s -march=x86-64 -O0 | FileCheck %s --check-prefix=X64
+; RUN: llc < %s -mtriple=x86_64-linux -O0 | FileCheck %s --check-prefix=X64
+; RUN: llc < %s -mtriple=x86_64-windows-itanium -O0 | FileCheck %s --check-prefix=X64
; RUN: llc < %s -march=x86 -O0 | FileCheck %s --check-prefix=X32
-; PR3181
; GEP indices are interpreted as signed integers, so they
; should be sign-extended to 64 bits on 64-bit targets.
-
+; PR3181
define i32 @test1(i32 %t3, i32* %t1) nounwind {
- %t9 = getelementptr i32* %t1, i32 %t3 ; <i32*> [#uses=1]
- %t15 = load i32* %t9 ; <i32> [#uses=1]
+ %t9 = getelementptr i32, i32* %t1, i32 %t3 ; <i32*> [#uses=1]
+ %t15 = load i32, i32* %t9 ; <i32> [#uses=1]
ret i32 %t15
-; X32: test1:
-; X32: movl (%ecx,%eax,4), %eax
+; X32-LABEL: test1:
+; X32: movl (%eax,%ecx,4), %eax
; X32: ret
-; X64: test1:
-; X64: movslq %edi, %rax
-; X64: movl (%rsi,%rax,4), %eax
+; X64-LABEL: test1:
+; X64: movslq %e[[A0:di|cx]], %rax
+; X64: movl (%r[[A1:si|dx]],%rax,4), %eax
; X64: ret
}
define i32 @test2(i64 %t3, i32* %t1) nounwind {
- %t9 = getelementptr i32* %t1, i64 %t3 ; <i32*> [#uses=1]
- %t15 = load i32* %t9 ; <i32> [#uses=1]
+ %t9 = getelementptr i32, i32* %t1, i64 %t3 ; <i32*> [#uses=1]
+ %t15 = load i32, i32* %t9 ; <i32> [#uses=1]
ret i32 %t15
-; X32: test2:
-; X32: movl (%eax,%ecx,4), %eax
+; X32-LABEL: test2:
+; X32: movl (%edx,%ecx,4), %e
+; X32: ret
+
+; X64-LABEL: test2:
+; X64: movl (%r[[A1]],%r[[A0]],4), %eax
+; X64: ret
+}
+
+
+
+; PR4984
+define i8 @test3(i8* %start) nounwind {
+entry:
+ %A = getelementptr i8, i8* %start, i64 -2 ; <i8*> [#uses=1]
+ %B = load i8, i8* %A, align 1 ; <i8> [#uses=1]
+ ret i8 %B
+
+
+; X32-LABEL: test3:
+; X32: movl 4(%esp), %eax
+; X32: movb -2(%eax), %al
; X32: ret
-; X64: test2:
-; X64: movl (%rsi,%rdi,4), %eax
+; X64-LABEL: test3:
+; X64: movb -2(%r[[A0]]), %al
; X64: ret
+
+}
+
+define double @test4(i64 %x, double* %p) nounwind {
+entry:
+ %x.addr = alloca i64, align 8 ; <i64*> [#uses=2]
+ %p.addr = alloca double*, align 8 ; <double**> [#uses=2]
+ store i64 %x, i64* %x.addr
+ store double* %p, double** %p.addr
+ %tmp = load i64, i64* %x.addr ; <i64> [#uses=1]
+ %add = add nsw i64 %tmp, 16 ; <i64> [#uses=1]
+ %tmp1 = load double*, double** %p.addr ; <double*> [#uses=1]
+ %arrayidx = getelementptr inbounds double, double* %tmp1, i64 %add ; <double*> [#uses=1]
+ %tmp2 = load double, double* %arrayidx ; <double> [#uses=1]
+ ret double %tmp2
+
+; X32-LABEL: test4:
+; X32: 128(%e{{.*}},%e{{.*}},8)
+; X64-LABEL: test4:
+; X64: 128(%r{{.*}},%r{{.*}},8)
}
+
+; PR8961 - Make sure the sext for the GEP addressing comes before the load that
+; is folded.
+define i64 @test5(i8* %A, i32 %I, i64 %B) nounwind {
+ %v8 = getelementptr i8, i8* %A, i32 %I
+ %v9 = bitcast i8* %v8 to i64*
+ %v10 = load i64, i64* %v9
+ %v11 = add i64 %B, %v10
+ ret i64 %v11
+; X64-LABEL: test5:
+; X64: movslq %e[[A1]], %rax
+; X64-NEXT: (%r[[A0]],%rax),
+; X64: ret
+}
+
+; PR9500, rdar://9156159 - Don't do non-local address mode folding,
+; because it may require values which wouldn't otherwise be live out
+; of their blocks.
+define void @test6() personality i32 (...)* @__gxx_personality_v0 {
+if.end: ; preds = %if.then, %invoke.cont
+ %tmp15 = load i64, i64* undef
+ %dec = add i64 %tmp15, 13
+ store i64 %dec, i64* undef
+ %call17 = invoke i8* @_ZNK18G__FastAllocString4dataEv()
+ to label %invoke.cont16 unwind label %lpad
+
+invoke.cont16: ; preds = %if.then14
+ %arrayidx18 = getelementptr inbounds i8, i8* %call17, i64 %dec
+ store i8 0, i8* %arrayidx18
+ unreachable
+
+lpad: ; preds = %if.end19, %if.then14, %if.end, %entry
+ %exn = landingpad {i8*, i32}
+ cleanup
+ unreachable
+}
+declare i8* @_ZNK18G__FastAllocString4dataEv() nounwind
+
+
+; PR10605 / rdar://9930964 - Don't fold loads incorrectly. The load should
+; happen before the store.
+define i32 @test7({i32,i32,i32}* %tmp1, i32 %tmp71, i32 %tmp63) nounwind {
+; X64-LABEL: test7:
+; X64: movl 8({{%rdi|%rcx}}), %eax
+; X64: movl $4, 8({{%rdi|%rcx}})
+
+
+ %tmp29 = getelementptr inbounds {i32,i32,i32}, {i32,i32,i32}* %tmp1, i32 0, i32 2
+ %tmp30 = load i32, i32* %tmp29, align 4
+
+ %p2 = getelementptr inbounds {i32,i32,i32}, {i32,i32,i32}* %tmp1, i32 0, i32 2
+ store i32 4, i32* %p2
+
+ %tmp72 = or i32 %tmp71, %tmp30
+ %tmp73 = icmp ne i32 %tmp63, 32
+ br i1 %tmp73, label %T, label %F
+
+T:
+ ret i32 %tmp72
+
+F:
+ ret i32 4
+}
+
+declare i32 @__gxx_personality_v0(...)
projects / oota-llvm.git / blobdiff