diff options
Diffstat (limited to 'llvm/test/CodeGen/Mips/madd-msub.ll')
| -rw-r--r-- | llvm/test/CodeGen/Mips/madd-msub.ll | 81 |
1 files changed, 30 insertions, 51 deletions
diff --git a/llvm/test/CodeGen/Mips/madd-msub.ll b/llvm/test/CodeGen/Mips/madd-msub.ll index 3e1a2e8b970..7baba005a07 100644 --- a/llvm/test/CodeGen/Mips/madd-msub.ll +++ b/llvm/test/CodeGen/Mips/madd-msub.ll @@ -25,11 +25,11 @@ ; 32R6-DAG: mul $[[T0:[0-9]+]], ${{[45]}}, ${{[45]}} ; 32R6-DAG: addu $[[T1:[0-9]+]], $[[T0]], $6 -; 32R6-DAG: sltu $[[T2:[0-9]+]], $[[T1]], $[[T0]] -; 32R6-DAG: muh $[[T3:[0-9]+]], ${{[45]}}, ${{[45]}} -; 32R6-DAG: sra $[[T4:[0-9]+]], $6, 31 -; 32R6-DAG: addu $[[T5:[0-9]+]], $[[T3]], $[[T4]] -; 32R6-DAG: addu $2, $[[T5]], $[[T2]] +; 32R6-DAG: sltu $[[T2:[0-9]+]], $[[T1]], $6 +; 32R6-DAG: sra $[[T3:[0-9]+]], $6, 31 +; 32R6-DAG: addu $[[T4:[0-9]+]], $[[T2]], $[[T3]] +; 32R6-DAG: muh $[[T5:[0-9]+]], ${{[45]}}, ${{[45]}} +; 32R6-DAG: addu $2, $[[T5]], $[[T4]] ; 64-DAG: sll $[[T0:[0-9]+]], $4, 0 ; 64-DAG: sll $[[T1:[0-9]+]], $5, 0 @@ -71,7 +71,7 @@ entry: ; 32R6-DAG: mul $[[T0:[0-9]+]], ${{[45]}}, ${{[45]}} ; 32R6-DAG: addu $[[T1:[0-9]+]], $[[T0]], $6 -; 32R6-DAG: sltu $[[T2:[0-9]+]], $[[T1]], $[[T0]] +; 32R6-DAG: sltu $[[T2:[0-9]+]], $[[T1]], $6 ; FIXME: There's a redundant move here. We should remove it ; 32R6-DAG: muhu $[[T3:[0-9]+]], ${{[45]}}, ${{[45]}} ; 32R6-DAG: addu $2, $[[T3]], $[[T2]] @@ -109,10 +109,10 @@ entry: ; 32R6-DAG: mul $[[T0:[0-9]+]], ${{[45]}}, ${{[45]}} ; 32R6-DAG: addu $[[T1:[0-9]+]], $[[T0]], $7 -; 32R6-DAG: sltu $[[T2:[0-9]+]], $[[T1]], $1 -; 32R6-DAG: muh $[[T3:[0-9]+]], ${{[45]}}, ${{[45]}} -; 32R6-DAG: addu $[[T4:[0-9]+]], $[[T3]], $6 -; 32R6-DAG: addu $2, $[[T4]], $[[T2]] +; 32R6-DAG: sltu $[[T2:[0-9]+]], $[[T1]], $7 +; 32R6-DAG: addu $[[T4:[0-9]+]], $[[T2]], $6 +; 32R6-DAG: muh $[[T5:[0-9]+]], ${{[45]}}, ${{[45]}} +; 32R6-DAG: addu $2, $[[T5]], $[[T4]] ; 64-DAG: sll $[[T0:[0-9]+]], $4, 0 ; 64-DAG: sll $[[T1:[0-9]+]], $5, 0 @@ -134,17 +134,6 @@ entry: ret i64 %add } -; ALL-LABEL: madd4 -; ALL-NOT: madd ${{[0-9]+}}, ${{[0-9]+}} - -define i32 @madd4(i32 %a, i32 %b, i32 %c) { -entry: - %mul = mul nsw i32 %a, %b - %add = add nsw i32 %c, %mul - - ret i32 %add -} - ; ALL-LABEL: msub1: ; 32-DAG: sra $[[T0:[0-9]+]], $6, 31 @@ -159,13 +148,13 @@ entry: ; DSP-DAG: mfhi $2, $[[AC]] ; DSP-DAG: mflo $3, $[[AC]] -; 32R6-DAG: mul $[[T0:[0-9]+]], ${{[45]}}, ${{[45]}} -; 32R6-DAG: sltu $[[T1:[0-9]+]], $6, $[[T0]] -; 32R6-DAG: muh $[[T2:[0-9]+]], ${{[45]}}, ${{[45]}} -; 32R6-DAG: sra $[[T3:[0-9]+]], $6, 31 -; 32R6-DAG: subu $[[T4:[0-9]+]], $[[T3]], $[[T2]] -; 32R6-DAG: subu $2, $[[T4]], $[[T1]] -; 32R6-DAG: subu $3, $6, $[[T0]] +; 32R6-DAG: muh $[[T0:[0-9]+]], ${{[45]}}, ${{[45]}} +; 32R6-DAG: mul $[[T1:[0-9]+]], ${{[45]}}, ${{[45]}} +; 32R6-DAG: sltu $[[T3:[0-9]+]], $6, $[[T1]] +; 32R6-DAG: addu $[[T4:[0-9]+]], $[[T3]], $[[T0]] +; 32R6-DAG: sra $[[T5:[0-9]+]], $6, 31 +; 32R6-DAG: subu $2, $[[T5]], $[[T4]] +; 32R6-DAG: subu $3, $6, $[[T1]] ; 64-DAG: sll $[[T0:[0-9]+]], $4, 0 ; 64-DAG: sll $[[T1:[0-9]+]], $5, 0 @@ -205,12 +194,13 @@ entry: ; DSP-DAG: mfhi $2, $[[AC]] ; DSP-DAG: mflo $3, $[[AC]] -; 32R6-DAG: mul $[[T0:[0-9]+]], ${{[45]}}, ${{[45]}} -; 32R6-DAG: sltu $[[T1:[0-9]+]], $6, $[[T0]] -; 32R6-DAG: muhu $[[T2:[0-9]+]], ${{[45]}}, ${{[45]}} -; 32R6-DAG: negu $[[T3:[0-9]+]], $[[T2]] -; 32R6-DAG: subu $2, $[[T3]], $[[T1]] -; 32R6-DAG: subu $3, $6, $[[T0]] +; 32R6-DAG: muhu $[[T0:[0-9]+]], ${{[45]}}, ${{[45]}} +; 32R6-DAG: mul $[[T1:[0-9]+]], ${{[45]}}, ${{[45]}} + +; 32R6-DAG: sltu $[[T2:[0-9]+]], $6, $[[T1]] +; 32R6-DAG: addu $[[T3:[0-9]+]], $[[T2]], $[[T0]] +; 32R6-DAG: negu $2, $[[T3]] +; 32R6-DAG: subu $3, $6, $[[T1]] ; 64-DAG: d[[m:m]]ult $5, $4 ; 64-DAG: [[m]]flo $[[T0:[0-9]+]] @@ -244,12 +234,12 @@ entry: ; DSP-DAG: mfhi $2, $[[AC]] ; DSP-DAG: mflo $3, $[[AC]] -; 32R6-DAG: mul $[[T0:[0-9]+]], ${{[45]}}, ${{[45]}} -; 32R6-DAG: sltu $[[T1:[0-9]+]], $7, $[[T0]] -; 32R6-DAG: muh $[[T2:[0-9]+]], ${{[45]}}, ${{[45]}} -; 32R6-DAG: subu $[[T3:[0-9]+]], $6, $[[T2]] -; 32R6-DAG: subu $2, $[[T3]], $[[T1]] -; 32R6-DAG: subu $3, $7, $[[T0]] +; 32R6-DAG: muh $[[T0:[0-9]+]], ${{[45]}}, ${{[45]}} +; 32R6-DAG: mul $[[T1:[0-9]+]], ${{[45]}}, ${{[45]}} +; 32R6-DAG: sltu $[[T2:[0-9]+]], $7, $[[T1]] +; 32R6-DAG: addu $[[T3:[0-9]+]], $[[T2]], $[[T0]] +; 32R6-DAG: subu $2, $6, $[[T3]] +; 32R6-DAG: subu $3, $7, $[[T1]] ; 64-DAG: sll $[[T0:[0-9]+]], $4, 0 ; 64-DAG: sll $[[T1:[0-9]+]], $5, 0 @@ -270,14 +260,3 @@ entry: %sub = sub nsw i64 %c, %mul ret i64 %sub } - -; ALL-LABEL: msub4 -; ALL-NOT: msub ${{[0-9]+}}, ${{[0-9]+}} - -define i32 @msub4(i32 %a, i32 %b, i32 %c) { -entry: - %mul = mul nsw i32 %a, %b - %sub = sub nsw i32 %c, %mul - - ret i32 %sub -} |
