From e7321441ac905716ad1df5fcbed48c59ea4aeb99 Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Mon, 25 Aug 2008 04:11:42 +0000
Subject: [PATCH] Fix asm printing of MOVSDto64mr and MOV64toSDrm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55300 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86Instr64bit.td             |  4 +-
 test/CodeGen/X86/2008-08-23-X86-64AsmBug.ll | 58 +++++++++++++++++++++
 2 files changed, 60 insertions(+), 2 deletions(-)
 create mode 100644 test/CodeGen/X86/2008-08-23-X86-64AsmBug.ll

diff --git a/lib/Target/X86/X86Instr64bit.td b/lib/Target/X86/X86Instr64bit.td
index 5e7c73c0baa..a1706a81442 100644
--- a/lib/Target/X86/X86Instr64bit.td
+++ b/lib/Target/X86/X86Instr64bit.td
@@ -1399,14 +1399,14 @@ def MOV64toSDrr : RPDI<0x6E, MRMSrcReg, (outs FR64:$dst), (ins GR64:$src),
                        "mov{d|q}\t{$src, $dst|$dst, $src}",
                        [(set FR64:$dst, (bitconvert GR64:$src))]>;
 def MOV64toSDrm : RPDI<0x6E, MRMSrcMem, (outs FR64:$dst), (ins i64mem:$src),
-                       "mov{d|q}\t{$src, $dst|$dst, $src}",
+                       "movq\t{$src, $dst|$dst, $src}",
                        [(set FR64:$dst, (bitconvert (loadi64 addr:$src)))]>;
 
 def MOVSDto64rr  : RPDI<0x7E, MRMDestReg, (outs GR64:$dst), (ins FR64:$src),
                         "mov{d|q}\t{$src, $dst|$dst, $src}",
                         [(set GR64:$dst, (bitconvert FR64:$src))]>;
 def MOVSDto64mr  : RPDI<0x7E, MRMDestMem, (outs), (ins i64mem:$dst, FR64:$src),
-                        "mov{d|q}\t{$src, $dst|$dst, $src}",
+                        "movq\t{$src, $dst|$dst, $src}",
                         [(store (i64 (bitconvert FR64:$src)), addr:$dst)]>;
 
 //===----------------------------------------------------------------------===//
diff --git a/test/CodeGen/X86/2008-08-23-X86-64AsmBug.ll b/test/CodeGen/X86/2008-08-23-X86-64AsmBug.ll
new file mode 100644
index 00000000000..2b9f96e188d
--- /dev/null
+++ b/test/CodeGen/X86/2008-08-23-X86-64AsmBug.ll
@@ -0,0 +1,58 @@
+; RUN: llvm-as < %s | llc -mtriple=x86_64-apple-darwin | not grep movd
+; RUN: llvm-as < %s | llc -mtriple=x86_64-apple-darwin | grep movq
+; PR2677
+
+	%struct.Bigint = type { %struct.Bigint*, i32, i32, i32, i32, [1 x i32] }
+
+define double @_Z7qstrtodPKcPS0_Pb(i8* %s00, i8** %se, i8* %ok) nounwind {
+entry:
+	br i1 false, label %bb151, label %bb163
+
+bb151:		; preds = %entry
+	br label %bb163
+
+bb163:		; preds = %bb151, %entry
+	%tmp366 = load double* null, align 8		; <double> [#uses=1]
+	%tmp368 = mul double %tmp366, 0.000000e+00		; <double> [#uses=1]
+	%tmp368226 = bitcast double %tmp368 to i64		; <i64> [#uses=1]
+	br label %bb5.i
+
+bb5.i:		; preds = %bb5.i57.i, %bb163
+	%b.0.i = phi %struct.Bigint* [ null, %bb163 ], [ %tmp9.i.i41.i, %bb5.i57.i ]		; <%struct.Bigint*> [#uses=1]
+	%tmp3.i7.i728 = load i32* null, align 4		; <i32> [#uses=1]
+	br label %bb.i27.i
+
+bb.i27.i:		; preds = %bb.i27.i, %bb5.i
+	%tmp23.i20.i = lshr i32 0, 16		; <i32> [#uses=1]
+	br i1 false, label %bb.i27.i, label %bb5.i57.i
+
+bb5.i57.i:		; preds = %bb.i27.i
+	%tmp50.i35.i = load i32* null, align 4		; <i32> [#uses=1]
+	%tmp51.i36.i = add i32 %tmp50.i35.i, 1		; <i32> [#uses=2]
+	%tmp2.i.i37.i = shl i32 1, %tmp51.i36.i		; <i32> [#uses=2]
+	%tmp4.i.i38.i = shl i32 %tmp2.i.i37.i, 2		; <i32> [#uses=1]
+	%tmp7.i.i39.i = add i32 %tmp4.i.i38.i, 28		; <i32> [#uses=1]
+	%tmp8.i.i40.i = malloc i8, i32 %tmp7.i.i39.i		; <i8*> [#uses=1]
+	%tmp9.i.i41.i = bitcast i8* %tmp8.i.i40.i to %struct.Bigint*		; <%struct.Bigint*> [#uses=2]
+	store i32 %tmp51.i36.i, i32* null, align 8
+	store i32 %tmp2.i.i37.i, i32* null, align 4
+	free %struct.Bigint* %b.0.i
+	store i32 %tmp23.i20.i, i32* null, align 4
+	%tmp74.i61.i = add i32 %tmp3.i7.i728, 1		; <i32> [#uses=1]
+	store i32 %tmp74.i61.i, i32* null, align 4
+	br i1 false, label %bb5.i, label %bb7.i
+
+bb7.i:		; preds = %bb5.i57.i
+	%tmp514 = load i32* null, align 4		; <i32> [#uses=1]
+	%tmp515 = sext i32 %tmp514 to i64		; <i64> [#uses=1]
+	%tmp516 = shl i64 %tmp515, 2		; <i64> [#uses=1]
+	%tmp517 = add i64 %tmp516, 8		; <i64> [#uses=1]
+	%tmp519 = getelementptr %struct.Bigint* %tmp9.i.i41.i, i32 0, i32 3		; <i32*> [#uses=1]
+	%tmp523 = bitcast i32* %tmp519 to i8*		; <i8*> [#uses=1]
+	call void @llvm.memcpy.i64( i8* null, i8* %tmp523, i64 %tmp517, i32 1 )
+	%tmp524136 = bitcast i64 %tmp368226 to double		; <double> [#uses=1]
+	store double %tmp524136, double* null
+	unreachable
+}
+
+declare void @llvm.memcpy.i64(i8*, i8*, i64, i32) nounwind
-- 
2.34.1