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-rw-r--r--test/CodeGen/X86/imul.ll230
1 files changed, 230 insertions, 0 deletions
diff --git a/test/CodeGen/X86/imul.ll b/test/CodeGen/X86/imul.ll
index 9d4d19332dbb1..45a83cc5dfd91 100644
--- a/test/CodeGen/X86/imul.ll
+++ b/test/CodeGen/X86/imul.ll
@@ -171,3 +171,233 @@ define i64 @mul18446744073709551615_64(i64 %A) {
%mul = mul i64 %A, 18446744073709551615
ret i64 %mul
}
+
+define i32 @test(i32 %a) {
+; X64-LABEL: test:
+; X64: # BB#0: # %entry
+; X64-NEXT: movl %edi, %eax
+; X64-NEXT: shll $5, %eax
+; X64-NEXT: subl %edi, %eax
+; X64-NEXT: retq
+;
+; X86-LABEL: test:
+; X86: # BB#0: # %entry
+; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT: movl %ecx, %eax
+; X86-NEXT: shll $5, %eax
+; X86-NEXT: subl %ecx, %eax
+; X86-NEXT: retl
+entry:
+ %tmp3 = mul i32 %a, 31
+ ret i32 %tmp3
+}
+
+define i32 @test1(i32 %a) {
+; X64-LABEL: test1:
+; X64: # BB#0: # %entry
+; X64-NEXT: movl %edi, %eax
+; X64-NEXT: shll $5, %eax
+; X64-NEXT: subl %edi, %eax
+; X64-NEXT: negl %eax
+; X64-NEXT: retq
+;
+; X86-LABEL: test1:
+; X86: # BB#0: # %entry
+; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT: movl %ecx, %eax
+; X86-NEXT: shll $5, %eax
+; X86-NEXT: subl %ecx, %eax
+; X86-NEXT: negl %eax
+; X86-NEXT: retl
+entry:
+ %tmp3 = mul i32 %a, -31
+ ret i32 %tmp3
+}
+
+
+define i32 @test2(i32 %a) {
+; X64-LABEL: test2:
+; X64: # BB#0: # %entry
+; X64-NEXT: # kill: %EDI<def> %EDI<kill> %RDI<def>
+; X64-NEXT: movl %edi, %eax
+; X64-NEXT: shll $5, %eax
+; X64-NEXT: leal (%rax,%rdi), %eax
+; X64-NEXT: retq
+;
+; X86-LABEL: test2:
+; X86: # BB#0: # %entry
+; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT: movl %ecx, %eax
+; X86-NEXT: shll $5, %eax
+; X86-NEXT: addl %ecx, %eax
+; X86-NEXT: retl
+entry:
+ %tmp3 = mul i32 %a, 33
+ ret i32 %tmp3
+}
+
+define i32 @test3(i32 %a) {
+; X64-LABEL: test3:
+; X64: # BB#0: # %entry
+; X64-NEXT: # kill: %EDI<def> %EDI<kill> %RDI<def>
+; X64-NEXT: movl %edi, %eax
+; X64-NEXT: shll $5, %eax
+; X64-NEXT: leal (%rax,%rdi), %eax
+; X64-NEXT: negl %eax
+; X64-NEXT: retq
+;
+; X86-LABEL: test3:
+; X86: # BB#0: # %entry
+; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT: movl %ecx, %eax
+; X86-NEXT: shll $5, %eax
+; X86-NEXT: addl %ecx, %eax
+; X86-NEXT: negl %eax
+; X86-NEXT: retl
+entry:
+ %tmp3 = mul i32 %a, -33
+ ret i32 %tmp3
+}
+
+define i64 @test4(i64 %a) {
+; X64-LABEL: test4:
+; X64: # BB#0: # %entry
+; X64-NEXT: movq %rdi, %rax
+; X64-NEXT: shlq $5, %rax
+; X64-NEXT: subq %rdi, %rax
+; X64-NEXT: retq
+;
+; X86-LABEL: test4:
+; X86: # BB#0: # %entry
+; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT: movl %eax, %ecx
+; X86-NEXT: shll $5, %ecx
+; X86-NEXT: subl %eax, %ecx
+; X86-NEXT: movl $31, %eax
+; X86-NEXT: mull {{[0-9]+}}(%esp)
+; X86-NEXT: addl %ecx, %edx
+; X86-NEXT: retl
+entry:
+ %tmp3 = mul i64 %a, 31
+ ret i64 %tmp3
+}
+
+define i64 @test5(i64 %a) {
+; X64-LABEL: test5:
+; X64: # BB#0: # %entry
+; X64-NEXT: movq %rdi, %rax
+; X64-NEXT: shlq $5, %rax
+; X64-NEXT: subq %rdi, %rax
+; X64-NEXT: negq %rax
+; X64-NEXT: retq
+;
+; X86-LABEL: test5:
+; X86: # BB#0: # %entry
+; X86-NEXT: pushl %esi
+; X86-NEXT: .Lcfi0:
+; X86-NEXT: .cfi_def_cfa_offset 8
+; X86-NEXT: .Lcfi1:
+; X86-NEXT: .cfi_offset %esi, -8
+; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT: movl %eax, %esi
+; X86-NEXT: shll $5, %esi
+; X86-NEXT: subl %eax, %esi
+; X86-NEXT: movl $-31, %edx
+; X86-NEXT: movl %ecx, %eax
+; X86-NEXT: mull %edx
+; X86-NEXT: subl %ecx, %edx
+; X86-NEXT: subl %esi, %edx
+; X86-NEXT: popl %esi
+; X86-NEXT: retl
+entry:
+ %tmp3 = mul i64 %a, -31
+ ret i64 %tmp3
+}
+
+
+define i64 @test6(i64 %a) {
+; X64-LABEL: test6:
+; X64: # BB#0: # %entry
+; X64-NEXT: movq %rdi, %rax
+; X64-NEXT: shlq $5, %rax
+; X64-NEXT: leaq (%rax,%rdi), %rax
+; X64-NEXT: retq
+;
+; X86-LABEL: test6:
+; X86: # BB#0: # %entry
+; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT: movl %eax, %ecx
+; X86-NEXT: shll $5, %ecx
+; X86-NEXT: addl %eax, %ecx
+; X86-NEXT: movl $33, %eax
+; X86-NEXT: mull {{[0-9]+}}(%esp)
+; X86-NEXT: addl %ecx, %edx
+; X86-NEXT: retl
+entry:
+ %tmp3 = mul i64 %a, 33
+ ret i64 %tmp3
+}
+
+define i64 @test7(i64 %a) {
+; X64-LABEL: test7:
+; X64: # BB#0: # %entry
+; X64-NEXT: movq %rdi, %rax
+; X64-NEXT: shlq $5, %rax
+; X64-NEXT: leaq (%rax,%rdi), %rax
+; X64-NEXT: negq %rax
+; X64-NEXT: retq
+;
+; X86-LABEL: test7:
+; X86: # BB#0: # %entry
+; X86-NEXT: pushl %esi
+; X86-NEXT: .Lcfi2:
+; X86-NEXT: .cfi_def_cfa_offset 8
+; X86-NEXT: .Lcfi3:
+; X86-NEXT: .cfi_offset %esi, -8
+; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT: movl {{[0-9]+}}(%esp), %eax
+; X86-NEXT: movl %eax, %esi
+; X86-NEXT: shll $5, %esi
+; X86-NEXT: addl %eax, %esi
+; X86-NEXT: movl $-33, %edx
+; X86-NEXT: movl %ecx, %eax
+; X86-NEXT: mull %edx
+; X86-NEXT: subl %ecx, %edx
+; X86-NEXT: subl %esi, %edx
+; X86-NEXT: popl %esi
+; X86-NEXT: retl
+entry:
+ %tmp3 = mul i64 %a, -33
+ ret i64 %tmp3
+}
+
+define i64 @testOverflow(i64 %a) {
+; X64-LABEL: testOverflow:
+; X64: # BB#0: # %entry
+; X64-NEXT: movabsq $9223372036854775807, %rax # imm = 0x7FFFFFFFFFFFFFFF
+; X64-NEXT: imulq %rdi, %rax
+; X64-NEXT: retq
+;
+; X86-LABEL: testOverflow:
+; X86: # BB#0: # %entry
+; X86-NEXT: pushl %esi
+; X86-NEXT: .Lcfi4:
+; X86-NEXT: .cfi_def_cfa_offset 8
+; X86-NEXT: .Lcfi5:
+; X86-NEXT: .cfi_offset %esi, -8
+; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
+; X86-NEXT: movl $-1, %edx
+; X86-NEXT: movl %ecx, %eax
+; X86-NEXT: mull %edx
+; X86-NEXT: movl %ecx, %esi
+; X86-NEXT: shll $31, %esi
+; X86-NEXT: subl %ecx, %esi
+; X86-NEXT: addl %esi, %edx
+; X86-NEXT: subl {{[0-9]+}}(%esp), %edx
+; X86-NEXT: popl %esi
+; X86-NEXT: retl
+entry:
+ %tmp3 = mul i64 %a, 9223372036854775807
+ ret i64 %tmp3
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-02 16:49:49 +0000